67486 + Interview Questions in Secondary School in Physics

1.	Tell me the answer plz fastly
Answer» ✴ *ANSWER: ☆ FORMULA* : d/dx ( x^ n ) = n x ^ n - 1 *Now, substitute* *this* in *the* *above* *formula* : we *get* ; d/dx ( x^4)= 4 x ^3 Hence option ( c) is the *right answer✔ Hope this HELPS* you!

1.

Tell me the answer plz fastly

Answer»

✴ ANSWER:

☆ FORMULA :

d/dx ( x^ n ) = n x ^ n - 1

Now, substitute this in the above formula :

we get ;

d/dx ( x^4)= 4 x ^3

Hence option ( c) is the right answer✔

Hope this HELPS you!

Discussion

2.	In a capacitor bridge, a voltage V, is appliedand the variable capacitor C, has beenadjusted till voltameter shows zero readingIf C = 8.9uF, C, = 18uF and C = 4.8uF atbalance point, then C (in uF) isBC1CxAсVC₂C3DVo
Answer» EXPLANATION: HLW MATE.... $Shinchanbody {background:#3e505e}.face {height: 600px;width: 350px;position: relative;margin: auto;}.face:before {content:'';background:black;height:122px;width:95px;position:absolute;z-index:6;left:210px;top:29px;border-radius:100% 190% 100% 0%;transform: rotate(-20deg);}.face:after {content:'';width:230px;height:180px;background:black;content:'';transform: rotate(-8deg);position:absolute;border-radius:100% 160% 100% 0%;left:70px;bottom:-14px;top:10px;z-index:5;}.forhead, .forhead:after {content: '';width: 220px;height: 181px;background: #fbc6a3;content: '';transform: rotate(-3deg);position: absolute;border-radius: 60% 120% 50% 0%;left: 67px;bottom: -14px;top: 21px;z-index: 6;}.forhead:after {width: 160px;height: 150px;border-radius: 150% 174% 159% 100%;transform: rotate(-20deg);top: 13px;left: 59px;border-top: 15px solid #fbc6a3;}.forhead:before{background:#fbc6a3;width:60px;height:10px;content:'';position:absolute;z-index:7;left:105px;top:9px;transform: rotate(13deg);border-radius:100%}.ear {width:60px;height:50px;background:#fbc6a3;z-index:7;position:absolute;border-radius:300% 190% 200% 100%;transform: rotate(-20deg);top:110px;left:285px}.cheeks {background: #fbc6a3;width: 280px;height: 100px;border-radius: 50px 0px 50px 40px;transform: rotate(-3deg);position: relative;content: 'a';top: 108px;left:10px}.cheeks:after {width: 297px;height: 100px;background: #fbc6a3;content: '';transform: rotate(-3deg);position: absolute;border-radius: 100% 100% 100% 100%;left: 1px;bottom: -14px;}.eye {width:40px;height:40px;position:relative;background:black;border-radius:100%;animation: close-eye 4s none .2s infinite;}.eye:after {content:'';position:absolute;background:white;width:15px;height:15px;border-radius:100%;left:17px;top:12px;}.eye:before {content:'';position:absolute;width:70px;height:60px;border-radius:100%;border-top:2px solid black;left:-20px;margin-top:-20px;}.eye.left,.eye.right {position:absolute;top:80px;left:100px;z-index:10;}.eye.right {left:190px;top:90px;}.eyebrow {animation: eyebroani 2s linear .2s infinite;}.eyebrow,.eyebrow:after {position:absolute;width:20px;height:60px;background:black;z-index:8;border-radius:15px;transform: rotate(40deg);top:10px;left:90px;}.eyebrow:after {content:'';transform: rotate(-100deg);left:19px;margin-top:-23px;top:auto;}.eyebrow.right {left:180px;top:8px;transform: rotate(50deg);}.mouth {position:absolute;width:40px;height:40px;background:#76322f;border-radius:100%;top:180px;left:50px;z-index:8;}.shy {position:absolute;width:0px;height:0px;border-radius:100%;opacity:0;box-shadow: 0px 0px 40px 20px red;z-index:8;left:35px;top:160px;animation: shy 10s linear .2s infinite;}.shy.right {left:170px;top:180px;}@keyframes eyebroani {0% {margin-top:auto}10% {margin-top:-10px}20% {margin-top:auto}30% {margin-top:-10px}40% {margin-top:auto}100% {margin-top:auto}}@keyframes shy {0% {opacity:0}10% {opacity:0.2}90% {opacity:0.2}100% {opacity:0}}@keyframes close-eye {0% {height: 40px;margin-top: auto;overflow: auto;}5% {height: 2px;margin-top: 20px;overflow: hidden;}5.1% {height: 40px;margin-top:0;overflow:visible;}}$

2.

In a capacitor bridge, a voltage V, is appliedand the variable capacitor C, has beenadjusted till voltameter shows zero readingIf C = 8.9uF, C, = 18uF and C = 4.8uF atbalance point, then C (in uF) isBC1CxAсVC₂C3DVo

Answer»

EXPLANATION:

$Shinchanbody {background:#3e505e}.face {height: 600px;width: 350px;position: relative;margin: auto;}.face:before {content:'';background:black;height:122px;width:95px;position:absolute;z-index:6;left:210px;top:29px;border-radius:100% 190% 100% 0%;transform: rotate(-20deg);}.face:after {content:'';width:230px;height:180px;background:black;content:'';transform: rotate(-8deg);position:absolute;border-radius:100% 160% 100% 0%;left:70px;bottom:-14px;top:10px;z-index:5;}.forhead, .forhead:after {content: '';width: 220px;height: 181px;background: #fbc6a3;content: '';transform: rotate(-3deg);position: absolute;border-radius: 60% 120% 50% 0%;left: 67px;bottom: -14px;top: 21px;z-index: 6;}.forhead:after {width: 160px;height: 150px;border-radius: 150% 174% 159% 100%;transform: rotate(-20deg);top: 13px;left: 59px;border-top: 15px solid #fbc6a3;}.forhead:before{background:#fbc6a3;width:60px;height:10px;content:'';position:absolute;z-index:7;left:105px;top:9px;transform: rotate(13deg);border-radius:100%}.ear {width:60px;height:50px;background:#fbc6a3;z-index:7;position:absolute;border-radius:300% 190% 200% 100%;transform: rotate(-20deg);top:110px;left:285px}.cheeks {background: #fbc6a3;width: 280px;height: 100px;border-radius: 50px 0px 50px 40px;transform: rotate(-3deg);position: relative;content: 'a';top: 108px;left:10px}.cheeks:after {width: 297px;height: 100px;background: #fbc6a3;content: '';transform: rotate(-3deg);position: absolute;border-radius: 100% 100% 100% 100%;left: 1px;bottom: -14px;}.eye {width:40px;height:40px;position:relative;background:black;border-radius:100%;animation: close-eye 4s none .2s infinite;}.eye:after {content:'';position:absolute;background:white;width:15px;height:15px;border-radius:100%;left:17px;top:12px;}.eye:before {content:'';position:absolute;width:70px;height:60px;border-radius:100%;border-top:2px solid black;left:-20px;margin-top:-20px;}.eye.left,.eye.right {position:absolute;top:80px;left:100px;z-index:10;}.eye.right {left:190px;top:90px;}.eyebrow {animation: eyebroani 2s linear .2s infinite;}.eyebrow,.eyebrow:after {position:absolute;width:20px;height:60px;background:black;z-index:8;border-radius:15px;transform: rotate(40deg);top:10px;left:90px;}.eyebrow:after {content:'';transform: rotate(-100deg);left:19px;margin-top:-23px;top:auto;}.eyebrow.right {left:180px;top:8px;transform: rotate(50deg);}.mouth {position:absolute;width:40px;height:40px;background:#76322f;border-radius:100%;top:180px;left:50px;z-index:8;}.shy {position:absolute;width:0px;height:0px;border-radius:100%;opacity:0;box-shadow: 0px 0px 40px 20px red;z-index:8;left:35px;top:160px;animation: shy 10s linear .2s infinite;}.shy.right {left:170px;top:180px;}@keyframes eyebroani {0% {margin-top:auto}10% {margin-top:-10px}20% {margin-top:auto}30% {margin-top:-10px}40% {margin-top:auto}100% {margin-top:auto}}@keyframes shy {0% {opacity:0}10% {opacity:0.2}90% {opacity:0.2}100% {opacity:0}}@keyframes close-eye {0% {height: 40px;margin-top: auto;overflow: auto;}5% {height: 2px;margin-top: 20px;overflow: hidden;}5.1% {height: 40px;margin-top:0;overflow:visible;}}$

Discussion

3.	Instrument used to measure electric potential is ________. a) Voltmeter b) Ammeter c) Rheostat d) Generator
Answer» Answer: a) Voltmeter Explanation: A voltmeter is an INSTRUMENT used for measuring electric potential DIFFERENCE between two points in an electric circuit. Hope this HELPED:D

3.

Instrument used to measure electric potential is ________. a) Voltmeter b) Ammeter c) Rheostat d) Generator

Answer»

Answer:

a) Voltmeter

Explanation:

A voltmeter is an INSTRUMENT used for measuring electric potential DIFFERENCE between two points in an electric circuit.

Hope this HELPED:D

Discussion

4.	What is wheat stone bridge principles plz explain with suitable diagram
Answer» Answer: Plz,if it is correct plz RATE ⭐me,like me and FOLLOW me and mark me as brainlist

4.

What is wheat stone bridge principles plz explain with suitable diagram

Answer»

Answer:

Plz,if it is correct plz RATE ⭐me,like me and FOLLOW me and mark me as brainlist

Discussion

5.	Three identical capacitors have equivalentcapacity 2 uF when they are connected inseries. If they are connected in parallel andcharged to a potential of 200V, the energystored in the system (in J) is
Answer» ANSWER: EXPLANATION: MARK me as BRAINLIEST then i will answer

5.

Three identical capacitors have equivalentcapacity 2 uF when they are connected inseries. If they are connected in parallel andcharged to a potential of 200V, the energystored in the system (in J) is

Answer»

ANSWER:

EXPLANATION:

MARK me as BRAINLIEST then i will answer

Discussion

6.	the radius of curvature of a convex lens are 15cm. and 10 cm respectively. if refractive index of lens is 1.5,then find its focal length
Answer» Given : ➳ Radius of curvature of a convex lens are 15cm and 10cm. ➳ RI of lens = 1.5 To Find : ➠ Focal LENGTH of convex lens. Solution : ⇒ Lens maker's formula : $\bigstar\:\underline{\boxed{\bf{\dfrac{1}{<klux>F</klux>}=(<klux>N</klux>-1){\huge(}\dfrac{1}{R_1}-\dfrac{1}{R_2}{\huge)}}}}$ ፨ where, ✏ f DENOTES focal length ✏ n denotes RI of lens ✏ R¹ and R² denotes radii of curvatures We know that, ➛ Radius of curvature of convex mirror is taken positive. ➛ Radius of curvature of concave mirror is taken NEGATIVE. $\longrightarrow\tt\:\dfrac{1}{f}=(n-1){\huge(}\dfrac{1}{R_1}-\dfrac{1}{R_2}{\huge)}\\ \\ \longrightarrow\tt\:\dfrac{1}{f}=(1.5-1){\huge(}\dfrac{1}{15}-\dfrac{1}{(-10)}{\huge)}\\ \\ \longrightarrow\tt\:\dfrac{1}{f}=0.5{\huge(}\dfrac{2+3}{30}{\huge)}\\ \\ \longrightarrow\tt\:\dfrac{1}{f}=0.5\times \dfrac{5}{30}\\ \\ \longrightarrow\tt\:f=\dfrac{60}{5}\\ \\ \longrightarrow\underline{\boxed{\bf{f=+12\:cm}}}$

6.

the radius of curvature of a convex lens are 15cm. and 10 cm respectively. if refractive index of lens is 1.5,then find its focal length

Answer»

Given :

➳ Radius of curvature of a convex lens are 15cm and 10cm.

➳ RI of lens = 1.5

To Find :

➠ Focal LENGTH of convex lens.

Solution :

⇒ Lens maker's formula :

$\bigstar\:\underline{\boxed{\bf{\dfrac{1}{<klux>F</klux>}=(<klux>N</klux>-1){\huge(}\dfrac{1}{R_1}-\dfrac{1}{R_2}{\huge)}}}}$

፨ where,

✏ f DENOTES focal length

✏ n denotes RI of lens

✏ R¹ and R² denotes radii of curvatures

We know that,

➛ Radius of curvature of convex mirror is taken positive.

➛ Radius of curvature of concave mirror is taken NEGATIVE.

$\longrightarrow\tt\:\dfrac{1}{f}=(n-1){\huge(}\dfrac{1}{R_1}-\dfrac{1}{R_2}{\huge)}\\ \\ \longrightarrow\tt\:\dfrac{1}{f}=(1.5-1){\huge(}\dfrac{1}{15}-\dfrac{1}{(-10)}{\huge)}\\ \\ \longrightarrow\tt\:\dfrac{1}{f}=0.5{\huge(}\dfrac{2+3}{30}{\huge)}\\ \\ \longrightarrow\tt\:\dfrac{1}{f}=0.5\times \dfrac{5}{30}\\ \\ \longrightarrow\tt\:f=\dfrac{60}{5}\\ \\ \longrightarrow\underline{\boxed{\bf{f=+12\:cm}}}$

Discussion

7.	Hello guys help me to explain the topic potential difference please ???
Answer» Answer: The difference of ELECTRICAL POTENTIAL between two POINTS

7.

Hello guys help me to explain the topic potential difference please ???

Answer»

Answer:

The difference of ELECTRICAL POTENTIAL between two POINTS

Discussion

8.	If momentum of an object is incresed by 20% then k.E
Answer» ANSWER: then K. E decreases by 10 PERCENT.

8.

If momentum of an object is incresed by 20% then k.E

Answer»

ANSWER:

then K. E decreases by 10 PERCENT.

Discussion

9.	Please give me explanation of the question 5 shared below
Answer» We know that Coloumb's Force is given as $F_{columbs}=k\frac{\|q_{1}\|\:\:\|q{2}\|}{r^{2}}$ Here Force is in NEWTON (N) r is in METRE (m) q is in coloumbs (C) Then k is EQUAL to . $k=\frac {F×r^{2}}{q^{2}}$ $k=\frac{N×m^{2}}{C^{2}}$ Hence unit of k $k\:or\: \frac{1}{4\pi\epsilon _{o}}=Nm^{2}C^{-2}$

9.

Please give me explanation of the question 5 shared below

Answer»

We know that Coloumb's Force is given as

$F_{columbs}=k\frac{|q_{1}|\:\:|q{2}|}{r^{2}}$

Here Force is in NEWTON (N)

r is in METRE (m)

q is in coloumbs (C)

Then k is EQUAL to .

$k=\frac {F×r^{2}}{q^{2}}$

$k=\frac{N×m^{2}}{C^{2}}$

Hence unit of k

$k\:or\: \frac{1}{4\pi\epsilon _{o}}=Nm^{2}C^{-2}$

Discussion

10.	a body travels 100m in the first two seconds and 104m in the next 4 seconds. How far it will move in the next 4 seconds if the acceleration is uniform.
Answer» Answer: 100=2u+2a u+a=50.......(1) 6u+18a=204...from the FIRST second......(2) solve (1) &(2): u=53 a=-3 In total 10 SEC distance travelled: 10u+1/2 X a x 10x10=380m , putting all the values: so distance covered in next four second=380-204=176m

10.

a body travels 100m in the first two seconds and 104m in the next 4 seconds. How far it will move in the next 4 seconds if the acceleration is uniform.

Answer»

Answer:

100=2u+2a

u+a=50.......(1)

6u+18a=204...from the FIRST second......(2)

solve (1) &(2):

u=53

a=-3

In total 10 SEC distance travelled:

10u+1/2 X a x 10x10=380m , putting all the values:

so distance covered in next four second=380-204=176m

Discussion

11.	State the number of significant figures in the following measurements 0.009m²
Answer» ANSWER: 1 SIGNIFICANT figure Explanation: In a NUMBER less than one, all the zeroes between the decimal and a number are insignificant. As in your question,only the number nine is significant

11.

State the number of significant figures in the following measurements 0.009m²

Answer»

ANSWER: 1 SIGNIFICANT figure

Explanation: In a NUMBER less than one, all the zeroes between the decimal and a number are insignificant.

As in your question,only the number nine is significant

Discussion

12.	Cos 120° find the answer plz
Answer» ANSWER is GIVEN below. PLEASE MARK BRAINLIEST.

12.

Cos 120° find the answer plz

Answer»

ANSWER is GIVEN below. PLEASE MARK BRAINLIEST.

Discussion

13.	(2x2=4)III. SHORT TYPE ANSWERS1. A piece of wire of resistance 200 is drawn out so that its length is increasedto twice and area is reduced to half of its original value. Calculate the newresistance and resistivity of this wire?
Answer» ANSWER: the RESISTIVITY is half Explanation: PLZ MARK as BRAINLLEST

13.

(2x2=4)III. SHORT TYPE ANSWERS1. A piece of wire of resistance 200 is drawn out so that its length is increasedto twice and area is reduced to half of its original value. Calculate the newresistance and resistivity of this wire?

Answer»

ANSWER:

the RESISTIVITY is half

Explanation:

PLZ MARK as BRAINLLEST

Discussion

14.	Calculate the overall voltage gain of the circuit if R1 = 100 and Rf = 1 k
Answer» ANSWER: ndnfnfndndncnvnfnnvgcgcc

14.

Calculate the overall voltage gain of the circuit if R1 = 100 and Rf = 1 k

Answer»

ANSWER:

ndnfnfndndncnvnfnnvgcgcc

Discussion

15.	When a constant force is applied to a body, it moves with uniform (1) Acceleration (2) Velocity (3) Speed (4) momentum
Answer» As by Newtons law F=ma where m is mass and a is acceleration if a CONSTANT FORCE is APPLIED then F=constant=ma a= mass/constant since mass is constant quantity HENCE ACCLERATION is constant.

15.

When a constant force is applied to a body, it moves with uniform (1) Acceleration (2) Velocity (3) Speed (4) momentum

Answer»

As by Newtons law F=ma where m is mass and a is acceleration if a CONSTANT FORCE is APPLIED then F=constant=ma

a= mass/constant

since mass is constant quantity HENCE ACCLERATION is constant.

Discussion

16.	Two cars A and B are moving in same direction with velocities 30 m/s and 20 m/s. When car A is at a distance d behind the car B, the driver of the car A applies brakes producing uniform retardation of 2 m/s2. There will be no collision when d is
Answer» DISTANCE BETWEEN THE CARS TO AVOID COLLISION It's very simple, The Distance between the two cars must be greater than or equal to the distance travelled by the car A after applying the breaks w.r.t carB. Car A :- After applying the break, The final VELOCITY, v will be 0 m/s. because the car would come to rest. Given,Relative Initial velocity of carA w.r.t carB , Initial velocity of carA - Initial velocity of carB ⇒ u' = 30 - 20 ⇒ u' = 10 m/s And uniform acceleration produced as a result of applying the brakes, a = -2 m/s² Using Third equation of MOTION, we get: ⇒ 2as = v² - u² ⇒ 2×-2×s = (0)² - (10)² ⇒ -4s = -100 ⇒ s = 25 m Here, The carA would travel 25m after applying the breaks w.r.t carB. So We CONCLUDE that the carA must be at a distance greater than 25m in order to avoid collision with car B. More EQUATIONS of Motion :- ⇒ v = u + at ⇒ h = ut + 1/2 (at²) Where, v = Final velocity u = Initial velocity a = Acceleration t = TIME taken h = Height

16.

Two cars A and B are moving in same direction with velocities 30 m/s and 20 m/s. When car A is at a distance d behind the car B, the driver of the car A applies brakes producing uniform retardation of 2 m/s2. There will be no collision when d is

Answer»

DISTANCE BETWEEN THE CARS TO AVOID COLLISION

It's very simple, The Distance between the two cars must be greater than or equal to the distance travelled by the car A after applying the breaks w.r.t carB.

Car A :-

After applying the break, The final VELOCITY, v will be 0 m/s. because the car would come to rest.

Given,Relative Initial velocity of carA w.r.t carB , Initial velocity of carA - Initial velocity of carB

⇒ u' = 30 - 20 ⇒ u' = 10 m/s

And uniform acceleration produced as a result of applying the brakes, a = -2 m/s²

Using Third equation of MOTION, we get:

⇒ 2as = v² - u²

⇒ 2×-2×s = (0)² - (10)²

⇒ -4s = -100

⇒ s = 25 m

Here, The carA would travel 25m after applying the breaks w.r.t carB. So We CONCLUDE that the carA must be at a distance greater than 25m in order to avoid collision with car B.

More EQUATIONS of Motion :-

⇒ v = u + at

⇒ h = ut + 1/2 (at²)

Where,

v = Final velocity
u = Initial velocity
a = Acceleration
t = TIME taken
h = Height

Discussion

17.	an object is thrown vertically upwards at 35m/s talking g=10m/s² the velocity of the object 5 sec later
Answer» ANSWER: hope it HELP you,uwu.sorry for BAD handwriting also never FORGET units

17.

an object is thrown vertically upwards at 35m/s talking g=10m/s² the velocity of the object 5 sec later

Answer»

ANSWER:

hope it HELP you,uwu.sorry for BAD handwriting also never FORGET units

Discussion

18.	Cos 150° find the answer plz
Answer» ANSWER: cos150=COS(180-30)=cos 30=-√3/2

18.

Cos 150° find the answer plz

Answer»

ANSWER:

cos150=COS(180-30)=cos 30=-√3/2

Discussion

19.	Depict a figure showing the arrangements of three resistors in acircuit to get an effective resistance of 9ohm, 4ohm
Answer» ANSWER: ARRANGE them In TRIANGLE

19.

Depict a figure showing the arrangements of three resistors in acircuit to get an effective resistance of 9ohm, 4ohm

Answer»

ANSWER:

ARRANGE them In TRIANGLE

Discussion

20.	When a constant force is applied to a body, it moves with uniform- (1) Acceleration (2) Velocity (3) Speed (4) momentum
Answer» ANSWER: i DONT UNDERSTAND QUESTION SORRY

20.

When a constant force is applied to a body, it moves with uniform- (1) Acceleration (2) Velocity (3) Speed (4) momentum

Answer»

ANSWER:

i DONT UNDERSTAND QUESTION SORRY

Discussion

21.	While working on a physics project at schoolphysics lab, you require a 4 uF capacitor in acircuit across a potential difference of 1 kV.Unfortunately, 4 uF capacitors are out of stock inyour lab but 2 uF capacitors which can withstanda potential difference of 400 V are available inplenty. If you decide to use the 2 uF capacitorsin place of 4 uF capacitor, minimum number ofcapacitors required are(2) 18(1) 16(3) 20(4) 12
Answer» EXPLANATION: the ANSWER is 3)20 select me as BRAIN LIST

21.

While working on a physics project at schoolphysics lab, you require a 4 uF capacitor in acircuit across a potential difference of 1 kV.Unfortunately, 4 uF capacitors are out of stock inyour lab but 2 uF capacitors which can withstanda potential difference of 400 V are available inplenty. If you decide to use the 2 uF capacitorsin place of 4 uF capacitor, minimum number ofcapacitors required are(2) 18(1) 16(3) 20(4) 12

Answer»

EXPLANATION:

the ANSWER is 3)20

select me as BRAIN LIST

Discussion

22.	Can you solve my problem
Answer» Answer: 3. Zero 4.Can 5.Faster 6. Less 7. SPECIAL cases 8. STRAIGHT Line 9.many times 10. Uniform Hope it HELPS.

22.

Can you solve my problem

Answer»

Answer:

3. Zero

4.Can

5.Faster

6. Less

7. SPECIAL cases

8. STRAIGHT Line

9.many times

10. Uniform

Hope it HELPS.

Discussion

23.	9. An artificial satellite take 120 minutes for one complete Revolution around the earth .Calculate the angular velocity of the satellite.
Answer» ANSWER is in the photo check it out..... HOPE IT WILL HELP ☺ #STAY HOME #STAY SAFE

23.

9. An artificial satellite take 120 minutes for one complete Revolution around the earth .Calculate the angular velocity of the satellite.

Answer»

ANSWER is in the photo check it out.....

HOPE IT WILL HELP ☺

#STAY HOME #STAY SAFE

Discussion

24.	Hii guys can you solve my question
Answer» ANSWER:UM i doint KNOW srry Explanation:

24.

Hii guys can you solve my question

Answer»

ANSWER:UM i doint KNOW srry

Explanation:

Discussion

25.	Q5. mass of body is 20 mg.Thepercentage error in its measurement willbe?(एक वस्तु का द्रव्यमान 20 मिलीग्राम है इस मापनमें प्रतिशत त्रुटि होगी?)O 2%10%O20%O5%
Answer» Q5. MASS of BODY is 20 mg.The percentage error in its measurement will be?(एक वस्तु का द्रव्यमान 20 मिलीग्राम है इस मापन में प्रतिशत त्रुटि होगी?) O 2% 10% O 20% O5% ➡Option D 20%

25.

Q5. mass of body is 20 mg.Thepercentage error in its measurement willbe?(एक वस्तु का द्रव्यमान 20 मिलीग्राम है इस मापनमें प्रतिशत त्रुटि होगी?)O 2%10%O20%O5%

Answer»

Q5. MASS of BODY is 20 mg.The

percentage error in its measurement will

be?(एक वस्तु का द्रव्यमान 20 मिलीग्राम है इस मापन

में प्रतिशत त्रुटि होगी?)

O 2%

10%

O

20%

O5%

➡Option D 20%

Discussion

26.	Npting question 3 out of 12The radii of curvature of the surface of a double convex lens are 25 cm and -25 cm. Therefractive index of the material of the lens is 1.5. Find the power of the lens.(a) 2 diopters(b) 4 diopters(c) 6 diopters(d) 8 diopters pls ans any one
Answer» ANSWER: C is the answer because of the

26.

Npting question 3 out of 12The radii of curvature of the surface of a double convex lens are 25 cm and -25 cm. Therefractive index of the material of the lens is 1.5. Find the power of the lens.(a) 2 diopters(b) 4 diopters(c) 6 diopters(d) 8 diopters pls ans any one

Answer»

ANSWER:

C is the answer because of the

Discussion

27.	Give one example each of a plant part:(a) which is positively hydrotropic age well as who is positively geotropic(b) which is positively phototrophic bot negatively geotropic
Answer» ANSWER: a.) Root b.) Stem Explanation: PLEASE MARK me BRAINLIEST

27.

Give one example each of a plant part:(a) which is positively hydrotropic age well as who is positively geotropic(b) which is positively phototrophic bot negatively geotropic

Answer»

ANSWER:

a.) Root

b.) Stem

Explanation:

PLEASE MARK me BRAINLIEST

Discussion

28.	3)cec) gaseous phased) any phase3. Three bodies A, B and Care in thermal equilibrium. The temperature of B is 45°C then thetemperature of C is13b) 50°Cc) 40°Cd) any temperatureata) 45°C
Answer» Answer: A, B and C are in THERMAL equilibrium and B is at temperature 450 C , then ACCORDING to zeroth law of ... 45∘C. Then the temperature of ′C′ is _____. A . 45∘C. B . 50∘C. C . 40∘C. D . EXPLANATION: plese MAKE me brilanist

28.

3)cec) gaseous phased) any phase3. Three bodies A, B and Care in thermal equilibrium. The temperature of B is 45°C then thetemperature of C is13b) 50°Cc) 40°Cd) any temperatureata) 45°C

Answer»

Answer:

A, B and C are in THERMAL equilibrium and B is at temperature 450 C , then ACCORDING to zeroth law of ... 45∘C. Then the temperature of ′C′ is _____. A . 45∘C. B . 50∘C. C . 40∘C. D .

EXPLANATION:

plese MAKE me brilanist

Discussion

29.	Our Calculate theMissof the following@ 0025 mote of iron6 2.5 moles© 250250 molecules of sodium chloro
Answer» Answer: hi mate how are u hope you are FINE..... can't UNDERSTAND your question sorry PLS forgive me...... hi mate pls upload your QUESTIONS CORRECTLY once more then i will definitely answer your question sure.......

29.

Our Calculate theMissof the following@ 0025 mote of iron6 2.5 moles© 250250 molecules of sodium chloro

Answer»

Answer:

hi mate how are u

hope you are FINE.....

can't UNDERSTAND your question

sorry PLS forgive me......

hi mate pls upload your QUESTIONS CORRECTLY once more then i will definitely answer your question

sure.......

Discussion

30.	A point P is located along X,Y and Z axis having coordinates (4,3,5).Find the position vector of Point P and magnitude of position vector and unit vector of this position vector.
Answer» ANSWER: FIND it in GOOGLE and don't DISTURB me

30.

A point P is located along X,Y and Z axis having coordinates (4,3,5).Find the position vector of Point P and magnitude of position vector and unit vector of this position vector.

Answer»

ANSWER:

FIND it in GOOGLE and don't DISTURB me

Discussion

31.	State the Newton's second law of motion and deduce the equation for it
Answer» GRAVITATIONAL FORCE is t

Discussion

32.	Ten identical cells connected in series areneeded to heat a wire of length one meterand radius 'r'by 10°C in time “t”. How manycells will be required to heat the wire oflength two meter of the same radius by thesame temperature in time “t?(karnataka NEET 2013) ?1) 202) 303) 404) 10
Answer» ANSWER: PLS MARK me as BRAINLIEST I will FOLLOW you Explanation: pls mark me as brainliest I will follow you

32.

Ten identical cells connected in series areneeded to heat a wire of length one meterand radius 'r'by 10°C in time “t”. How manycells will be required to heat the wire oflength two meter of the same radius by thesame temperature in time “t?(karnataka NEET 2013) ?1) 202) 303) 404) 10

Answer»

ANSWER:

PLS MARK me as BRAINLIEST I will FOLLOW you

Explanation:

pls mark me as brainliest I will follow you

Discussion

33.	Sin 120° please find the answer
Answer» ANSWER: SIN 120⁰ = sin PI /2 + sin 30⁰ = sin 30⁰ = 1/2 GIVE THANKS =TAKE THANKS $Captain America Shieldhtml, body {background:#0846A8;height: 500px;}.container {width:100%;height: 100%;display: flex;justify-content: center;align-items: center;}.circle {border-radius: 50%;display: flex;flex-direction: row;justify-content: center;align-items: center;border:1px solid #000;}.outer-lv3 {background-image: linear-gradient(#870000,#FF4040,#870000);height: 260px;width: 260px;-webkit-animation: turning 8s infinite linear;animation: turning 8s infinite linear;}@-webkit-keyframes turning {0% {transform: rotate(0deg)}100% {transform: rotate(360deg)}}@keyframes turning {0% {transform: rotate(0deg)}100% {transform: rotate(360deg)}}.outer-lv2 {background: #fff;background-image: linear-gradient(#DBD9D9,#FAFAFA,#DBD9D9);height: 210px;width: 210px;}.outer-lv1 {background-image: linear-gradient(#870000,#FF4040,#870000);height: 150px;width: 150px;}.center {background-image: linear-gradient(#0846A8,#277AFF,#0846A8);height: 100px;width: 100px;border-radius: 50%;position: relative;overflow: hidden;border:1px solid #000;}.arrow {border-top: 35px solid #EDF8E8;border-bottom: 48px solid rgba(0,0,0,0.0);border-left: 48px solid transparent;border-right: 48px solid transparent;position: absolute;height: 0;width: 0;}.top {top: 35px;left: 2px;}.left {transform: rotate(72deg);top: 16px;left: -24px;}.right {transform: rotate(-72deg);top: 16px;left: 25px;}$

33.

Sin 120° please find the answer

Answer»

ANSWER:

SIN 120⁰ = sin PI /2 + sin 30⁰

= sin 30⁰

= 1/2

GIVE THANKS =TAKE THANKS

$Captain America Shieldhtml, body {background:#0846A8;height: 500px;}.container {width:100%;height: 100%;display: flex;justify-content: center;align-items: center;}.circle {border-radius: 50%;display: flex;flex-direction: row;justify-content: center;align-items: center;border:1px solid #000;}.outer-lv3 {background-image: linear-gradient(#870000,#FF4040,#870000);height: 260px;width: 260px;-webkit-animation: turning 8s infinite linear;animation: turning 8s infinite linear;}@-webkit-keyframes turning {0% {transform: rotate(0deg)}100% {transform: rotate(360deg)}}@keyframes turning {0% {transform: rotate(0deg)}100% {transform: rotate(360deg)}}.outer-lv2 {background: #fff;background-image: linear-gradient(#DBD9D9,#FAFAFA,#DBD9D9);height: 210px;width: 210px;}.outer-lv1 {background-image: linear-gradient(#870000,#FF4040,#870000);height: 150px;width: 150px;}.center {background-image: linear-gradient(#0846A8,#277AFF,#0846A8);height: 100px;width: 100px;border-radius: 50%;position: relative;overflow: hidden;border:1px solid #000;}.arrow {border-top: 35px solid #EDF8E8;border-bottom: 48px solid rgba(0,0,0,0.0);border-left: 48px solid transparent;border-right: 48px solid transparent;position: absolute;height: 0;width: 0;}.top {top: 35px;left: 2px;}.left {transform: rotate(72deg);top: 16px;left: -24px;}.right {transform: rotate(-72deg);top: 16px;left: 25px;}$

Discussion

34.	The velocity time graph ofthe two particles P and P,are shown in the adjoiningfigure. The ratio of thedistance covered by themX2at any instant is xYA=P2- Pi6030t
Answer» ANSWER: I am not ABLE to UNDERSTAND PLS EXPLAIN in comments Explanation:

34.

The velocity time graph ofthe two particles P and P,are shown in the adjoiningfigure. The ratio of thedistance covered by themX2at any instant is xYA=P2- Pi6030t

Answer»

ANSWER:

I am not ABLE to UNDERSTAND PLS EXPLAIN in comments

Explanation:

Discussion

35.	State any five examples of uniform circular motion
Answer» Answer: State any five examples of uniform CIRCULAR motion Examples of Uniform Circular Motion-ii Wheel of any vehicle moves ALONG a circular path. Merry-go-around in full speed. Water pump in a GARDEN which throws water in a circular motion. An electron moving around its nucleus. Amusement park rides. An AUDIO CD or disc runs in a player. Moving fan. Moving turbine.

35.

State any five examples of uniform circular motion

Answer»

Answer:

State any five examples of uniform CIRCULAR motion

Examples of Uniform Circular Motion-ii

Wheel of any vehicle moves ALONG a circular path.

Merry-go-around in full speed.

Water pump in a GARDEN which throws water in a circular motion.

An electron moving around its nucleus.

Amusement park rides.

An AUDIO CD or disc runs in a player.

Moving fan.

Moving turbine.

Discussion

36.	What is coriolis?how it will help.what features this have.explain briefly
Answer» Answer: plz mark brainliest The main cause of the Coriolis effect is the Earth's rotation. As the Earth spins in a counter-clockwise direction on its AXIS, anything FLYING or flowing over a long DISTANCE above its surface is deflected. The Coriolis effect is, therefore, linked to the motion of the object, the motion of Earth (the rotating frame of reference), and the latitude on Earth at which the object is moving.. The Coriolis effect is important to virtually all sciences that relate to Earth and planetary motions. It is critical to the dynamics of the atmosphere INCLUDING the motions of winds and storms. In oceanography , it helps explains the motions of oceanic currents Explanation:

36.

What is coriolis?how it will help.what features this have.explain briefly

Answer»

Answer: plz mark brainliest

The main cause of the Coriolis effect is the Earth's rotation. As the Earth spins in a counter-clockwise direction on its AXIS, anything FLYING or flowing over a long DISTANCE above its surface is deflected.

The Coriolis effect is, therefore, linked to the motion of the object, the motion of Earth (the rotating frame of reference), and the latitude on Earth at which the object is moving..

The Coriolis effect is important to virtually all sciences that relate to Earth and planetary motions. It is critical to the dynamics of the atmosphere INCLUDING the motions of winds and storms. In oceanography , it helps explains the motions of oceanic currents

Explanation:

Discussion

37.	4. Derive an expression for gravitational potentialenergy for an object.5. Can any object have mechanical energy even if itsmomentum is zero ? Explain.6. Can any object have momentum even if itsmechanical energy is zero ? Explain.7. Why does a saw become warm when it is used tocut a wooden log? State the energy transformation.8. A stone is dropped from a height 'h'. Prove that theenergy at any point in its path is 'mgh'.9. Derive a relationship between linear momentum and kinetic energy.10. A light and a heavy object have the same momentum. Find out their ratio of kinetic energy. Which one has larger kinetic energy.
Answer» Answer: 10 QUESTIONS for only five POINTS ..... I can't SOLVE them.... really SORRY...

37.

4. Derive an expression for gravitational potentialenergy for an object.5. Can any object have mechanical energy even if itsmomentum is zero ? Explain.6. Can any object have momentum even if itsmechanical energy is zero ? Explain.7. Why does a saw become warm when it is used tocut a wooden log? State the energy transformation.8. A stone is dropped from a height 'h'. Prove that theenergy at any point in its path is 'mgh'.9. Derive a relationship between linear momentum and kinetic energy.10. A light and a heavy object have the same momentum. Find out their ratio of kinetic energy. Which one has larger kinetic energy.

Answer»

Answer:

10 QUESTIONS for only five POINTS .....

I can't SOLVE them....

really SORRY...

Discussion

38.	Arun and Babu carry a wooden log of mass28 kg and length 10 m which has almostuniform thickness. They hold it at 1 m and2 m from the ends respectively. Who willbear more weight of the log? [g = 10 ms ]
Answer» Answer: Arun bears more weight. Explanation: Since the cetre of GRAVITY lies at 5.5 m , Arun farer to the CENTRE of gravity than to Babu. So imbalance is CREATED at centre of gravity moves to Arun, so Arun bears more weight.

38.

Arun and Babu carry a wooden log of mass28 kg and length 10 m which has almostuniform thickness. They hold it at 1 m and2 m from the ends respectively. Who willbear more weight of the log? [g = 10 ms ]

Answer»

Answer:

Arun bears more weight.

Explanation:

Since the cetre of GRAVITY lies at 5.5 m , Arun farer to the CENTRE of gravity than to Babu.

So imbalance is CREATED at centre of gravity moves to Arun, so Arun bears more weight.

Discussion

39.	Draw x t graph for the given graph
Answer» ANSWER: BY USING the PYTHAGOREUS THEROUM

39.

Draw x t graph for the given graph

Answer»

ANSWER:

BY USING the PYTHAGOREUS THEROUM

Discussion

40.	समुंद्र में सूर्य की किरणें कितनी गहराई तक जाती हैं
Answer» EXPLANATION: सूर्य की रोशनी समुद्र में 400 मीटर तक जा सकती है.

40.

समुंद्र में सूर्य की किरणें कितनी गहराई तक जाती हैं

Answer»

EXPLANATION:

सूर्य की रोशनी समुद्र में 400 मीटर तक जा सकती है.

Discussion

41.	Difference between force and momentum
Answer» Answer:PLS MARK BRAINLIEST Explanation:Momentum is AMOUNT of MOTION in a MOVING body, whereas force is an ACTION of push or pull. Force CHANGES momentum of a body. Force does not change for constant acceleration whereas momentum changes.

41.

Difference between force and momentum

Answer»

Answer:PLS MARK BRAINLIEST

Explanation:Momentum is AMOUNT of MOTION in a MOVING body, whereas force is an ACTION of push or pull. Force CHANGES momentum of a body. Force does not change for constant acceleration whereas momentum changes.

Discussion

42.	The washer of an air pump is used with grease/oil why ?
Answer» ANSWER: PRESUMING the washer in question is in the crankcase and acts as a THRUST washer, the grease/oil is lubrication. Without a parts diagram that is only a GUESS.

42.

The washer of an air pump is used with grease/oil why ?

Answer»

ANSWER:

PRESUMING the washer in question is in the crankcase and acts as a THRUST washer, the grease/oil is lubrication. Without a parts diagram that is only a GUESS.

Discussion

43.	(b) A physical quantity X is related to three observables a, b, c as X= √ b2/ c2. The errors of measurement in a, b and c are 2%, 1% and 3% respectively. What is the percentage error in quantity X?
Answer» ANSWER: SORRY, I am not ABLE to UNDERSTAND the question. EXPLANATION: Please tell proper questions.

43.

(b) A physical quantity X is related to three observables a, b, c as X= √ b2/ c2. The errors of measurement in a, b and c are 2%, 1% and 3% respectively. What is the percentage error in quantity X?

Answer»

ANSWER:

SORRY, I am not ABLE to UNDERSTAND the question.

EXPLANATION:

Please tell proper questions.

Discussion

44.	when does a body rotate ? state one way to change the direction of rotation of a body . give a suitable example to explain your answer
Answer» ANSWER: here is the answer.............

44.

when does a body rotate ? state one way to change the direction of rotation of a body . give a suitable example to explain your answer

Answer»

ANSWER:

here is the answer.............

Discussion

45.	if distance between two objects decreased to 25 percent, what percent the gravitational force will be ?
Answer»

Discussion

46.	Q2-dimension formula of gas R constantfrom PV=RT is?. Where P is pressure andVisvolume.(समीकरण PV=RT से गैस नियतांक Rका विमीय सूत्र है? जहां P दाब है व V आयतन है)O LML?I ?O IM IL?T?]O [ML?Tz2O [ML?T 2011
Answer» ANSWER: GIVE two adaptations of under WATER plants

46.

Q2-dimension formula of gas R constantfrom PV=RT is?. Where P is pressure andVisvolume.(समीकरण PV=RT से गैस नियतांक Rका विमीय सूत्र है? जहां P दाब है व V आयतन है)O LML?I ?O IM IL?T?]O [ML?Tz2O [ML?T 2011

Answer»

ANSWER:

GIVE two adaptations of under WATER plants

Discussion

47.	ਹੇਠ ਲਿਖੀਆਂ ਵਿੱਚੋਂ ਕਿਹੜਾ ਤਰੀਕਾਫੁਰਤੀ ਵਧਾਉਣ ਲਈ ਹੀ ਨਹੀਂ ਹੈ।(ਉ) ਸੈਟਲ ਰਨ(ਅ ) ਮੈਰਾਥਨ(ੲ)5 ਪੌੜੀ ਨੁਮਾ ਜੰਪ( ਸ) ੳ ਤੇ ੲ ਦੋਵੇਂ
Answer» Answer: I THINK 3RD one .ACTUALLY I m a punjabi sikh girl but UNFORTUNATELY I m weak in punjabi

47.

ਹੇਠ ਲਿਖੀਆਂ ਵਿੱਚੋਂ ਕਿਹੜਾ ਤਰੀਕਾਫੁਰਤੀ ਵਧਾਉਣ ਲਈ ਹੀ ਨਹੀਂ ਹੈ।(ਉ) ਸੈਟਲ ਰਨ(ਅ ) ਮੈਰਾਥਨ(ੲ)5 ਪੌੜੀ ਨੁਮਾ ਜੰਪ( ਸ) ੳ ਤੇ ੲ ਦੋਵੇਂ

Answer»

Answer:

I THINK 3RD one .ACTUALLY I m a punjabi sikh girl but UNFORTUNATELY I m weak in punjabi

Discussion

48.	Acceleration×time - final velocity=initial velocity is it true
Answer» ANSWER: false. please MARK as BRAINLIST answer and FOLLOW me

48.

Acceleration×time - final velocity=initial velocity is it true

Answer»

ANSWER:

false.

please MARK as BRAINLIST answer and FOLLOW me

Discussion

49.	Write the following statement are true or false with reasons.1. Acceleration is always positive.2. Distance is a scaler quantity.3. SI unit of force is dyne.
Answer» ANSWER: false ,acceleration can also be negative that is only CALLED as deaccelration true , it will not DEPEND UPON direction only on magnitude false, SI unit of force is newton

49.

Write the following statement are true or false with reasons.1. Acceleration is always positive.2. Distance is a scaler quantity.3. SI unit of force is dyne.

Answer»

ANSWER:

false ,acceleration can also be negative that is only CALLED as deaccelration
true , it will not DEPEND UPON direction only on magnitude
false, SI unit of force is newton

Discussion

50.	What is the force between two small charged spheres and having charger 13× 10 power-7 c and 10× 10 power -7c placed 30cm in air
Answer» ANSWER: Your answer is GIVEN below. PLEASE MARK as BRAINLIEST.

50.

What is the force between two small charged spheres and having charger 13× 10 power-7 c and 10× 10 power -7c placed 30cm in air

Answer»

ANSWER:

Your answer is GIVEN below. PLEASE MARK as BRAINLIEST.

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Tell me the answer plz fastly​

✴ ANSWER:

In a capacitor bridge, a voltage V, is appliedand the variable capacitor C, has beenadjusted till voltameter shows zero readingIf C = 8.9uF, C, = 18uF and C = 4.8uF atbalance point, then C (in uF) isBC1CxAсVC₂C3DVo​

HLW MATE....

Instrument used to measure electric potential is ________. a) Voltmeter b) Ammeter c) Rheostat d) Generator

What is wheat stone bridge principles plz explain with suitable diagram​

Three identical capacitors have equivalentcapacity 2 uF when they are connected inseries. If they are connected in parallel andcharged to a potential of 200V, the energystored in the system (in J) is​

MARK me as BRAINLIEST then i will answer

the radius of curvature of a convex lens are 15cm. and 10 cm respectively. if refractive index of lens is 1.5,then find its focal length

Given :

To Find :

Solution :

Hello guys help me to explain the topic potential difference please ???​

If momentum of an object is incresed by 20% then k.E

Please give me explanation of the question 5 shared below

a body travels 100m in the first two seconds and 104m in the next 4 seconds. How far it will move in the next 4 seconds if the acceleration is uniform. ​

State the number of significant figures in the following measurements 0.009m²​

Cos 120° find the answer plz​

(2x2=4)III. SHORT TYPE ANSWERS1. A piece of wire of resistance 200 is drawn out so that its length is increasedto twice and area is reduced to half of its original value. Calculate the newresistance and resistivity of this wire?​

Calculate the overall voltage gain of the circuit if R1 = 100 and Rf = 1 k

When a constant force is applied to a body, it moves with uniform (1) Acceleration (2) Velocity (3) Speed (4) momentum

Two cars A and B are moving in same direction with velocities 30 m/s and 20 m/s. When car A is at a distance d behind the car B, the driver of the car A applies brakes producing uniform retardation of 2 m/s2. There will be no collision when d is​

DISTANCE BETWEEN THE CARS TO AVOID COLLISION

an object is thrown vertically upwards at 35m/s talking g=10m/s² the velocity of the object 5 sec later​

Cos 150° find the answer plz​

Depict a figure showing the arrangements of three resistors in acircuit to get an effective resistance of 9ohm, 4ohm

When a constant force is applied to a body, it moves with uniform- (1) Acceleration (2) Velocity (3) Speed (4) momentum

Can you solve my problem​

9. An artificial satellite take 120 minutes for one complete Revolution around the earth .Calculate the angular velocity of the satellite.

HOPE IT WILL HELP ☺

#STAY HOME #STAY SAFE

Hii guys can you solve my question​

Q5. mass of body is 20 mg.Thepercentage error in its measurement willbe?(एक वस्तु का द्रव्यमान 20 मिलीग्राम है इस मापनमें प्रतिशत त्रुटि होगी?)O 2%10%O20%O5%​

Npting question 3 out of 12The radii of curvature of the surface of a double convex lens are 25 cm and -25 cm. Therefractive index of the material of the lens is 1.5. Find the power of the lens.(a) 2 diopters(b) 4 diopters(c) 6 diopters(d) 8 diopters​ pls ans any one

Give one example each of a plant part:(a) which is positively hydrotropic age well as who is positively geotropic(b) which is positively phototrophic bot negatively geotropic​

3)cec) gaseous phased) any phase3. Three bodies A, B and Care in thermal equilibrium. The temperature of B is 45°C then thetemperature of C is13b) 50°Cc) 40°Cd) any temperatureata) 45°C​

Our Calculate theMissof the following@ 0025 mote of iron6 2.5 moles© 250250 molecules of sodium chloro​

A point P is located along X,Y and Z axis having coordinates (4,3,5).Find the position vector of Point P and magnitude of position vector and unit vector of this position vector.​

State the Newton's second law of motion and deduce the equation for it

Ten identical cells connected in series areneeded to heat a wire of length one meterand radius 'r'by 10°C in time “t”. How manycells will be required to heat the wire oflength two meter of the same radius by thesame temperature in time “t?(karnataka NEET 2013) ?1) 202) 303) 404) 10​

Sin 120° please find the answer​

The velocity time graph ofthe two particles P and P,are shown in the adjoiningfigure. The ratio of thedistance covered by themX2at any instant is xYA=P2- Pi6030t​

State any five examples of uniform circular motion​

What is coriolis?how it will help.what features this have.explain briefly

Answer: plz mark brainliest

The main cause of the Coriolis effect is the Earth's rotation. As the Earth spins in a counter-clockwise direction on its AXIS, anything FLYING or flowing over a long DISTANCE above its surface is deflected.

The Coriolis effect is, therefore, linked to the motion of the object, the motion of Earth (the rotating frame of reference), and the latitude on Earth at which the object is moving..

The Coriolis effect is important to virtually all sciences that relate to Earth and planetary motions. It is critical to the dynamics of the atmosphere INCLUDING the motions of winds and storms. In oceanography , it helps explains the motions of oceanic currents

Arun and Babu carry a wooden log of mass28 kg and length 10 m which has almostuniform thickness. They hold it at 1 m and2 m from the ends respectively. Who willbear more weight of the log? [g = 10 ms ]​

Draw x t graph for the given graph​

समुंद्र में सूर्य की किरणें कितनी गहराई तक जाती हैं​

Difference between force and momentum​

The washer of an air pump is used with grease/oil why ?​

(b) A physical quantity X is related to three observables a, b, c as X= √ b2/ c2. The errors of measurement in a, b and c are 2%, 1% and 3% respectively. What is the percentage error in quantity X?​

when does a body rotate ? state one way to change the direction of rotation of a body . give a suitable example to explain your answer​

if distance between two objects decreased to 25 percent, what percent the gravitational force will be ?

ਹੇਠ ਲਿਖੀਆਂ ਵਿੱਚੋਂ ਕਿਹੜਾ ਤਰੀਕਾਫੁਰਤੀ ਵਧਾਉਣ ਲਈ ਹੀ ਨਹੀਂ ਹੈ।(ਉ) ਸੈਟਲ ਰਨ(ਅ ) ਮੈਰਾਥਨ(ੲ)5 ਪੌੜੀ ਨੁਮਾ ਜੰਪ( ਸ) ੳ ਤੇ ੲ ਦੋਵੇਂ ​

Acceleration×time - final velocity=initial velocity is it true​

Write the following statement are true or false with reasons.1. Acceleration is always positive.2. Distance is a scaler quantity.3. SI unit of force is dyne.​

What is the force between two small charged spheres and having charger 13× 10 power-7 c and 10× 10 power -7c placed 30cm in air

Tell me the answer plz fastly

In a capacitor bridge, a voltage V, is appliedand the variable capacitor C, has beenadjusted till voltameter shows zero readingIf C = 8.9uF, C, = 18uF and C = 4.8uF atbalance point, then C (in uF) isBC1CxAсVC₂C3DVo

What is wheat stone bridge principles plz explain with suitable diagram

Three identical capacitors have equivalentcapacity 2 uF when they are connected inseries. If they are connected in parallel andcharged to a potential of 200V, the energystored in the system (in J) is

Hello guys help me to explain the topic potential difference please ???

a body travels 100m in the first two seconds and 104m in the next 4 seconds. How far it will move in the next 4 seconds if the acceleration is uniform.

State the number of significant figures in the following measurements 0.009m²

Cos 120° find the answer plz

(2x2=4)III. SHORT TYPE ANSWERS1. A piece of wire of resistance 200 is drawn out so that its length is increasedto twice and area is reduced to half of its original value. Calculate the newresistance and resistivity of this wire?

Two cars A and B are moving in same direction with velocities 30 m/s and 20 m/s. When car A is at a distance d behind the car B, the driver of the car A applies brakes producing uniform retardation of 2 m/s2. There will be no collision when d is

an object is thrown vertically upwards at 35m/s talking g=10m/s² the velocity of the object 5 sec later

Cos 150° find the answer plz

Can you solve my problem

Hii guys can you solve my question

Q5. mass of body is 20 mg.Thepercentage error in its measurement willbe?(एक वस्तु का द्रव्यमान 20 मिलीग्राम है इस मापनमें प्रतिशत त्रुटि होगी?)O 2%10%O20%O5%

Npting question 3 out of 12The radii of curvature of the surface of a double convex lens are 25 cm and -25 cm. Therefractive index of the material of the lens is 1.5. Find the power of the lens.(a) 2 diopters(b) 4 diopters(c) 6 diopters(d) 8 diopters pls ans any one

Give one example each of a plant part:(a) which is positively hydrotropic age well as who is positively geotropic(b) which is positively phototrophic bot negatively geotropic

3)cec) gaseous phased) any phase3. Three bodies A, B and Care in thermal equilibrium. The temperature of B is 45°C then thetemperature of C is13b) 50°Cc) 40°Cd) any temperatureata) 45°C

Our Calculate theMissof the following@ 0025 mote of iron6 2.5 moles© 250250 molecules of sodium chloro

A point P is located along X,Y and Z axis having coordinates (4,3,5).Find the position vector of Point P and magnitude of position vector and unit vector of this position vector.

Ten identical cells connected in series areneeded to heat a wire of length one meterand radius 'r'by 10°C in time “t”. How manycells will be required to heat the wire oflength two meter of the same radius by thesame temperature in time “t?(karnataka NEET 2013) ?1) 202) 303) 404) 10

Sin 120° please find the answer

The velocity time graph ofthe two particles P and P,are shown in the adjoiningfigure. The ratio of thedistance covered by themX2at any instant is xYA=P2- Pi6030t

State any five examples of uniform circular motion

Arun and Babu carry a wooden log of mass28 kg and length 10 m which has almostuniform thickness. They hold it at 1 m and2 m from the ends respectively. Who willbear more weight of the log? [g = 10 ms ]

Draw x t graph for the given graph

समुंद्र में सूर्य की किरणें कितनी गहराई तक जाती हैं

Difference between force and momentum

The washer of an air pump is used with grease/oil why ?

(b) A physical quantity X is related to three observables a, b, c as X= √ b2/ c2. The errors of measurement in a, b and c are 2%, 1% and 3% respectively. What is the percentage error in quantity X?

when does a body rotate ? state one way to change the direction of rotation of a body . give a suitable example to explain your answer

ਹੇਠ ਲਿਖੀਆਂ ਵਿੱਚੋਂ ਕਿਹੜਾ ਤਰੀਕਾਫੁਰਤੀ ਵਧਾਉਣ ਲਈ ਹੀ ਨਹੀਂ ਹੈ।(ਉ) ਸੈਟਲ ਰਨ(ਅ ) ਮੈਰਾਥਨ(ੲ)5 ਪੌੜੀ ਨੁਮਾ ਜੰਪ( ਸ) ੳ ਤੇ ੲ ਦੋਵੇਂ

Acceleration×time - final velocity=initial velocity is it true

Write the following statement are true or false with reasons.1. Acceleration is always positive.2. Distance is a scaler quantity.3. SI unit of force is dyne.