67486 + Interview Questions in Secondary School in Physics

1.	Rhythmic activitiesincludesaerobics,zumbarhythmicgymnastics.true or false
Answer» ONG>ANSWER: TRUE rithmic ACTIVITIES invlove them

Discussion

2.	Which vaccination is given for protection against poliomyelitis ( polio)? (A) B.C.G. (B)O.P.Vbb (C)T.T. (D)D.P.T.
Answer» ong>Answer:P> B) o. p. v Explanation: There are TWO vaccines for polio: the Oral Polio Vaccine (OPV) and the Inactivated Polio Vaccine (IPV). OPV is taken orally as drops and can be EASILY administered. It does not REQUIRE a trained health worker. OPV is still the MAIN preventive measure against polio. I hope this will help you✌

2.

Which vaccination is given for protection against poliomyelitis ( polio)? (A) B.C.G. (B)O.P.Vbb (C)T.T. (D)D.P.T.

Answer»

ong>Answer:P>

B) o. p. v

Explanation:

There are TWO vaccines for polio: the Oral Polio Vaccine (OPV) and the Inactivated Polio Vaccine (IPV). OPV is taken orally as drops and can be EASILY administered. It does not REQUIRE a trained health worker. OPV is still the MAIN preventive measure against polio.

I hope this will help you✌

Discussion

3.	The ratio of magnetic field along the axis of magnetic field along the equator of a magnet is?
Answer» ONG>Answer: Magnetic induction at a point on equator is 7.5 x 10-6 Wb/m2. EXAMPLE – 12: The strength of magnetic field at a point on axis of a magnetic DIPOLE at a distance of 10 cm from its centre is 4 x 10-5 Wb/m2.

Discussion

4.	2 n force is applied to an object and it makes displacement 5 m in the direction perpendicular to force. Calculate the work done by the force.
Answer» rong>Topic :- Work energy and Power $\maltese\:\underline{\sf AnsWer :} \: \maltese$ Force Applied to an object (F) = 2 N DISPLACEMENT of the body (s) = 5 m θ = 90° [∵ Displacement is done in the direction PERPENDICULAR to the Force] We need to find the work done by the body. To calculate work done by the body we will use the GIVEN below formula : $\longrightarrow\:\sf Work \: Done = Fs \cos (\theta) \\$ Now, simply add the known values from the Question in the above given formula : $\longrightarrow\:\sf Work \: Done = 2 \times 5 \cos (90^{ \circ} ) \\$ $\longrightarrow\:\sf Work \: Done = 10 \cos (90^{ \circ} ) \\$ $\qquad \qquad\tiny \dag \: \underline{\sf \cos \: (90^{ \circ}) = 0}$ $\longrightarrow\:\sf Work \: Done = 10 \times 0 \\$ $\longrightarrow\: \underline{ \boxed{\sf Work \: Done = 0 \: J}}\\$ HENCE,the work done by the body is 0 J.

4.

2 n force is applied to an object and it makes displacement 5 m in the direction perpendicular to force. Calculate the work done by the force.

Answer»

rong>Topic :- Work energy and Power

$\maltese\:\underline{\sf AnsWer :} \: \maltese$

Force Applied to an object (F) = 2 N
DISPLACEMENT of the body (s) = 5 m
θ = 90° [∵ Displacement is done in the direction PERPENDICULAR to the Force]

We need to find the work done by the body. To calculate work done by the body we will use the GIVEN below formula :

$\longrightarrow\:\sf Work \: Done = Fs \cos (\theta) \\$

Now, simply add the known values from the Question in the above given formula :

$\longrightarrow\:\sf Work \: Done = 2 \times 5 \cos (90^{ \circ} ) \\$

$\longrightarrow\:\sf Work \: Done = 10 \cos (90^{ \circ} ) \\$

$\qquad \qquad\tiny \dag \: \underline{\sf \cos \: (90^{ \circ}) = 0}$

$\longrightarrow\:\sf Work \: Done = 10 \times 0 \\$

$\longrightarrow\: \underline{ \boxed{\sf Work \: Done = 0 \: J}}\\$

HENCE,the work done by the body is 0 J.

Discussion

5.	5Silicon is abundantly obtained from:a) Waterb) Metalc) Sandd) Stones
Answer» ong>Answer: Silicon is ABUNDANTLY OBTAINED from *SAND.*

5.

5Silicon is abundantly obtained from:a) Waterb) Metalc) Sandd) Stones

Answer»

ong>Answer:

Silicon is ABUNDANTLY OBTAINED from SAND.

Discussion

6.	A student determines the focal length of a device 'X' by focusing the image of a distant object on a screen placed 20 cm from the device on the same side as the object. The device 'X' is(a) Concave lens of focal length 10 cm(b) Convex lens of focal length 20 cm(c) Concave mirror of focal length 10 cm(d) Concave mirror of focal length 20 cm
Answer» ong>ANSWER: OPTION d Explanation: there is a trick for this question that is whenever distant object given assume that light is coming from INFINITY so rays from infinity meets at focus so screen is placed at focus hence focal lenght would be 20CM

6.

A student determines the focal length of a device 'X' by focusing the image of a distant object on a screen placed 20 cm from the device on the same side as the object. The device 'X' is(a) Concave lens of focal length 10 cm(b) Convex lens of focal length 20 cm(c) Concave mirror of focal length 10 cm(d) Concave mirror of focal length 20 cm

Answer»

ong>ANSWER:

OPTION d

Explanation:

there is a trick for this question that is whenever distant object given assume that light is coming from INFINITY

so rays from infinity meets at focus so screen is placed at focus hence focal lenght would be 20CM

Discussion

7.	(b समय(0-नित ग्राफ की विवेचना कीजिए-21+7(d)P+
Answer» ong>Answer: SORRY I was not able to get your question. can you please ask in english! -------------------------------------------------- I hope I was able to help you Please SUB my u TUBE CHANNEL " IDEAL MORTAL" THANK you in advance and HAVE A GREAT DAY AHEAD! --------------------------------------------------

7.

(b समय(0-नित ग्राफ की विवेचना कीजिए-21+7(d)P+

Answer»

ong>Answer:

SORRY I was not able to get your question. can you please ask in english!

--------------------------------------------------

I hope I was able to help you

Please SUB my u TUBE CHANNEL " IDEAL MORTAL"

THANK you in advance and HAVE A GREAT DAY AHEAD!

--------------------------------------------------

Discussion

8.	10.The magnitude of centrifugal force is a)mv^2 b)mw^2r c)mw/v d)muN
Answer» ong>ANSWER: B) mw^2r Explanation: centrifugal force always radically outward from the AXIS of rotation of the rotation frame .

8.

10.The magnitude of centrifugal force is a)mv^2 b)mw^2r c)mw/v d)muN

Answer»

ong>ANSWER:

B) mw^2r

Explanation:

centrifugal force always radically outward from the AXIS of rotation of the rotation frame .

Discussion

9.	Describe the various components of a hospital system?
Answer» Explanation: hospital contains one or more wards that house hospital BEDS for inpatients. It may also have acute services such as an emergency department, OPERATING theatre, and intensive care UNIT, as well as a range of medical specialty DEPARTMENTS. A well-equipped hospital may be classified as a trauma CENTER

9.

Describe the various components of a hospital system?

Answer»

Explanation:

hospital contains one or more wards that house hospital BEDS for inpatients. It may also have acute services such as an emergency department, OPERATING theatre, and intensive care UNIT, as well as a range of medical specialty DEPARTMENTS. A well-equipped hospital may be classified as a trauma CENTER

Discussion

10.	S,i unit of electric current density is ,,,,,,,
Answer» ONG>Answer: amperes per SQUARE metre is the SI unit of ELECTRIC current density

Discussion

11.	Calculate the ratio of momentum if velocity of an object is doubled.
Answer» ong>Explanation: The MOMENTUM of an object of mass \(m \) MOVING with velocity \(v \) is given by the EQUATION: \(p=mv \ a\)) If the velocity is doubled, the momentum of the object would become: \(p'=mv'=m\left (2v \right )=2mv=2p \) HENCE, the momentum would ALSO become twice.

11.

Calculate the ratio of momentum if velocity of an object is doubled.

Answer»

ong>Explanation:

The MOMENTUM of an object of mass $m $ MOVING with velocity $v $ is given by the EQUATION: $p=mv \ a$) If the velocity is doubled, the momentum of the object would become: $p'=mv'=m\left (2v \right )=2mv=2p $ HENCE, the momentum would ALSO become twice.

Discussion

12.	Write the four guantum number for differentiating electron of sodium (Na)
Answer» ONG>Answer: *The atomic number(Z) of Na is 11. So the electronic CONFIGURATION is, 1S2 , 2s2 , 2p6 , 3s1.*

12.

Write the four guantum number for differentiating electron of sodium (Na)

Answer» ONG>Answer:

The atomic number(Z) of Na is 11. So the electronic CONFIGURATION is, 1S2 , 2s2 , 2p6 , 3s1.

Discussion

13.	Effect of electric field in vacuum?
Answer» ract The dielectric effect was theoretically investigated in order to describe the electric field in the vicinity of a junction of a metal, dielectric, and vacuum. The ASSUMPTION of two-dimensional symmetry of the junction leads to a simple ANALYTIC FORM and to a systematic numerical calculation for the field. The electric field obtained for the triple junction was found to be ENHANCED or reduced according to a certain criterion determined by the contact angles and dielectric constant. Further numerical calculations of the dielectric effect show that an electric field can experience a larger ENHANCEMENT or reduction for a quadruple junction than that achieved for the triple junction. It was also found that even though it changes slowly in comparison with the shape effect, the dielectric effect was noticeably large over the entire range of the shape change.

13.

Effect of electric field in vacuum?

Answer»

ract

The dielectric effect was theoretically investigated in order to describe the electric field in the vicinity of a junction of a metal, dielectric, and vacuum. The ASSUMPTION of two-dimensional symmetry of the junction leads to a simple ANALYTIC FORM and to a systematic numerical calculation for the field. The electric field obtained for the triple junction was found to be ENHANCED or reduced according to a certain criterion determined by the contact angles and dielectric constant. Further numerical calculations of the dielectric effect show that an electric field can experience a larger ENHANCEMENT or reduction for a quadruple junction than that achieved for the triple junction. It was also found that even though it changes slowly in comparison with the shape effect, the dielectric effect was noticeably large over the entire range of the shape change.

Discussion

14.	State and define the SI unit of electric current
Answer» MB is the UNIT of CHARGE

Discussion

15.	Bhuvi jogs a circular ground of diameter 14 km..Find the distance and displacement covered by her in a. 3 rounds b. 2 1/2 rounds c 4 1/4 rounds d. 1 3/4 rounds
Answer» n:- Bhuvi jogs a CIRCULAR ground of diameter 14 km To Find:- the distance and displacement covered by her in a. 3 rounds b. 2 1/2 rounds c 4 1/4 rounds d. 1 3/4 rounds Solution:- Radius (r) = diameter/2 = 14/2 = 7 km a. 3 rounds- Distance covered in 1 round = 2πr = 2x22/7x7 = 44 km Distance covered in 3 rounds = 3 x 44 = 132 km Displacement is the shortest distance between the initial and the final position Displacement covered in 3 rounds = 0 (Since the initial position coincides with the final position) b. 2 1/2 rounds Distance covered = 2.5 x distance covered in 1 round = 2.5 x 44 = 110 km In 2.5 rounds, Bhuvi will REACH the other end of the semicircular path ⇒ Displacement =2r = 14 km Hence the distance and displacement covered at the end of 21/2 rounds is 110 km and 14 km respectively. c. 4 1/4 rounds- Distance covered = (4 x distance covered in 1 round + 1/4 x distance covered in one round) = (4x44 + 1/4 x 44) =187 km Displacement covered = $\sqrt{2}r$ = 7 $\sqrt{2}$ km hence, the distance and displacement covered at the end of 4 1/4 rounds is 187 km and 7 $\sqrt{2}$ km respectively. d. 1 3/4 rounds Distance covered = (Distance covered in one round + 3/4x distance covered in one round) = (44+ 33) = 77km Displacement covered = $\sqrt{2}$ r = 7 Hence, the distance and displacement covered at the end of 1 3/4 rounds is 77 km and 7 $\sqrt{2}$ km respectively

15.

Bhuvi jogs a circular ground of diameter 14 km..Find the distance and displacement covered by her in a. 3 rounds b. 2 1/2 rounds c 4 1/4 rounds d. 1 3/4 rounds

Answer»

n:-

Bhuvi jogs a CIRCULAR ground of diameter 14 km

To Find:-

the distance and displacement covered by her in

a. 3 rounds

b. 2 1/2 rounds

c 4 1/4 rounds

d. 1 3/4 rounds

Solution:-

Radius (r) = diameter/2 = 14/2 = 7 km

a. 3 rounds-

Distance covered in 1 round = 2πr = 2x22/7x7 = 44 km

Distance covered in 3 rounds = 3 x 44 = 132 km

Displacement is the shortest distance between the initial and the final position

Displacement covered in 3 rounds = 0 (Since the initial position coincides with the final position)

b. 2 1/2 rounds

Distance covered = 2.5 x distance covered in 1 round = 2.5 x 44 = 110 km

In 2.5 rounds, Bhuvi will REACH the other end of the semicircular path

⇒ Displacement =2r = 14 km

Hence the distance and displacement covered at the end of 21/2 rounds is 110 km and 14 km respectively.

c. 4 1/4 rounds-

Distance covered = (4 x distance covered in 1 round + 1/4 x distance covered in one round) = (4x44 + 1/4 x 44) =187 km

Displacement covered = $\sqrt{2}r$ = 7 $\sqrt{2}$ km

hence, the distance and displacement covered at the end of 4 1/4 rounds is 187 km and 7 $\sqrt{2}$ km respectively.

d. 1 3/4 rounds

Distance covered = (Distance covered in one round + 3/4x distance covered in one round)

= (44+ 33) = 77km

Displacement covered = $\sqrt{2}$ r = 7

Hence, the distance and displacement covered at the end of 1 3/4 rounds is 77 km and 7 $\sqrt{2}$ km respectively

Discussion

16.	6.The momentum is the product of mass anda)acceleration b)velocity c)density d) volume3
Answer» ONG>Answer: B) VELOCITY is your answer *hope* it *may* *help* *you*

16.

6.The momentum is the product of mass anda)acceleration b)velocity c)density d) volume3

Answer» ONG>Answer:

B) VELOCITY is your answer

hope it may help you

Discussion

17.	A transformer having secondary voltage 12V(rms) is used to construct center tap rectifier. Calculate the average voltage VDC
Answer» ONG>ANSWER: kvkviv Explanation: vhvjvb kbnk jbbkbn nnbkk

17.

A transformer having secondary voltage 12V(rms) is used to construct center tap rectifier. Calculate the average voltage VDC

Answer» ONG>ANSWER:

kvkviv

Explanation:

vhvjvb kbnk jbbkbn nnbkk

Discussion

18.	5. The dy/dx of x" isa)n xn+1b)nx^2nc)nx^n-1dx^n+1/n+1
Answer» ONG>ANSWER: C is the answer Explanation: dy/dx of x = nx^n-1

18.

5. The dy/dx of x" isa)n xn+1b)nx^2nc)nx^n-1dx^n+1/n+1

Answer» ONG>ANSWER:

C is the answer

Explanation:

dy/dx of x = nx^n-1

Discussion

19.	.Leaves of desert moss have the ability to extract _______ from air
Answer» ONG>Answer: LEAVES of DESERT moss have the ability to extract WATER from air Explanation:

19.

.Leaves of desert moss have the ability to extract _______ from air

Answer» ONG>Answer:

LEAVES of DESERT moss have the ability to extract WATER from air

Explanation:

Discussion

20.	Plz answer this question A train moving with uniform speed covers a distance of 120m in 2seconds. Calculate the speed of the train and time taken to cover a distance of 240 m
Answer» ONG>Answer: it TAKES 4 second to cover 240M

Discussion

21.	What were the path of stone when it is thrown from a moving bus
Answer» ong>ANSWER: Answer I am not sure what to do you JEJE ude paayin mu ka jaatiya rajpathra bastaa gahma thaanaa antargata gandhamardana paahaare pulisa EKA pulisa o JAMI baahaaraku JAI sethare

21.

What were the path of stone when it is thrown from a moving bus

Answer»

ong>ANSWER:

Answer I am not sure what to do you JEJE ude paayin mu ka jaatiya rajpathra bastaa gahma thaanaa antargata gandhamardana paahaare pulisa EKA pulisa o JAMI baahaaraku JAI sethare

Discussion

22.	how is the strength of magnetic field near a straight current conductor related to the strength of current in conductor?
Answer» ong>Answer: As a current FLOWING in the straight current conductor carrying WIRE increases it's strength of MAGNETIC field ALSO increases. This MEANS current flowing in the conductor is directly proportional to it's strength of magnetic field. Explanation:

22.

how is the strength of magnetic field near a straight current conductor related to the strength of current in conductor?

Answer»

ong>Answer:

As a current FLOWING in the straight current conductor carrying WIRE increases it's strength of MAGNETIC field ALSO increases. This MEANS current flowing in the conductor is directly proportional to it's strength of magnetic field.

Explanation:

Discussion

23.	In a square field with side 100m a person completes exactly 5 revolution. Calculate displacement. PLEASE ANSWER IT FAST
Answer» maximum displacement is the DIAGONAL of the square field. SIDE of square = 100M diagonal = √100² + 100² = √20000 = 100√2 m = 141.42m So maximum displacement is 141.42m. Hope it helps. Pls mark this BRAINLIEST

23.

In a square field with side 100m a person completes exactly 5 revolution. Calculate displacement. PLEASE ANSWER IT FAST

Answer»

maximum displacement is the DIAGONAL of the square field.

SIDE of square = 100M

diagonal = √100² + 100² = √20000 = 100√2 m = 141.42m

So maximum displacement is 141.42m.

Hope it helps.

Pls mark this BRAINLIEST

Discussion

24.	Who said these words ''Be faithful in small things because it is in them that your strength lies''? please tell answer
Answer» ONG>Answer: LUKE 16:10 plz REPORT and delete my question thanks above is your answer

24.

Who said these words ''Be faithful in small things because it is in them that your strength lies''? please tell answer

Answer» ONG>Answer:

LUKE 16:10

plz REPORT and delete my question thanks above is your answer

Discussion

25.	2. Vitamin D is essential for (1)Bone(2)Skin(3)Teeth(4)All of the above
Answer»

Discussion

26.	The atmospheric pressure is maximum at sea-level. Why?
Answer» ong>Answer: The atmospheric pressure is about 14.7 pounds per SQUARE inch ATMOSPHERE (atm). It is because with CHANGE in altitude atmospheric pressure CHANGES. I hope you understand PLS mark me brainliest

26.

The atmospheric pressure is maximum at sea-level. Why?

Answer»

ong>Answer:

The atmospheric pressure is about 14.7 pounds per SQUARE inch ATMOSPHERE (atm). It is because

with CHANGE in altitude atmospheric pressure CHANGES.

I hope you understand

PLS mark me brainliest

Discussion

27.	Solve the given guestion ASAP
Answer» ONG>ANSWER: *Here* is *your* *answer. Explanation:* HOPE IT HELP'S..........

27.

Solve the given guestion ASAP

Answer» ONG>ANSWER:

Here is your answer.

Explanation:

HOPE IT HELP'S..........

Discussion

28.	1. At a particular point, electric field depends upon (a) source charge only (b) test charge qo only (c) both Q and 902. The SI unit of electric field intensity is(6) N/C(a) N(c) C/m2(d) N/m2
Answer» ong>ANSWER: a. The strength of the ELECTRIC field depends on the source CHARGE, not on the test charge. ... ... The direction of the FORCE that is exerted on a negative charge is opposite that which is exerted on a positive charge. b . volts per meter. (V/m).

28.

1. At a particular point, electric field depends upon (a) source charge only (b) test charge qo only (c) both Q and 902. The SI unit of electric field intensity is(6) N/C(a) N(c) C/m2(d) N/m2

Answer»

ong>ANSWER:

a. The strength of the ELECTRIC field depends on the source CHARGE, not on the test charge. ... ... The direction of the FORCE that is exerted on a negative charge is opposite that which is exerted on a positive charge.

b . volts per meter. (V/m).

Discussion

29.	The word physics is derived from which word a)latin b)Greek c)french d)Aradic
Answer» ONG>ANSWER: (B) Greek Explanation: It can HELP you

29.

The word physics is derived from which word a)latin b)Greek c)french d)Aradic

Answer» ONG>ANSWER:

(B) Greek

Explanation:

It can HELP you

Discussion

30.	FIND THE NET FORCE ON A , USING COULOMB'S SUPERPOSITION PRINCIPLE
Answer» ong>Answer: Mosquitoes have thin, long bodies and three pairs of extremely long legs. They have scales along the veins of their wings and long beak-like, SHARP SUCKING mouth parts called a proboscis. These TWO FEATURES distinguish mosquitoes from other flies. Mosquitoes also have feathery or hairy antennae. Explanation: hum anpr HAI

30.

FIND THE NET FORCE ON A , USING COULOMB'S SUPERPOSITION PRINCIPLE

Answer»

ong>Answer:

Mosquitoes have thin, long bodies and three pairs of extremely long legs. They have scales along the veins of their wings and long beak-like, SHARP SUCKING mouth parts called a proboscis. These TWO FEATURES distinguish mosquitoes from other flies. Mosquitoes also have feathery or hairy antennae.

Explanation:

hum anpr HAI

Discussion

31.	До4 what is the balue
Answer» ong>ANSWER: hamar Tambu mai DHUM DHAM

31.

До4 what is the balue

Answer»

ong>ANSWER:

hamar Tambu mai DHUM DHAM

Discussion

32.	State Newton’s second law of motion. Derive F = ma
Answer» ong>Answer: According to Newton's second law of motion the force is EQUAL to the rate of momentum. The change in momentum which is also known as IMPULSE is the PRODUCT of the mass and the velocity. Then the force is the product of mass and acceleration.

32.

State Newton’s second law of motion. Derive F = ma

Answer»

ong>Answer:

According to Newton's second law of motion the force is EQUAL to the rate of momentum. The change in momentum which is also known as IMPULSE is the PRODUCT of the mass and the velocity. Then the force is the product of mass and acceleration.

Discussion

33.	Lais. / S24. Starting from rest, an aeroplane takes off after covering 0.7km on the runway. If it takes off at 35 ms-1, calculate (a) theacceleration (b) time for which it moves on the runway.Ans, (a) 0-875 m s-2: (h) 40 sl
Answer» Explanation: initial VELOCITY , u = 0m/s final velocity. , v. = 35m/s distance. , s = 0.7km = 0.7×1000 = 700m acceleration , a. = ? v^2 = u^2 + 2as 35^2 = 0^2 + 2×a×700 1225. = 1400a 1225/1400 = a 0.875m/s^2 =a time , t = ? s = ut +1/2 at^2 700. = 0×t + 1/2×0.875×t^2 700. = 0.4375t^2 700/0.4375 = t^2 1600. = t^2 40^2 = t^2 40 SEC = t

33.

Lais. / S24. Starting from rest, an aeroplane takes off after covering 0.7km on the runway. If it takes off at 35 ms-1, calculate (a) theacceleration (b) time for which it moves on the runway.Ans, (a) 0-875 m s-2: (h) 40 sl

Answer»

Explanation:

initial VELOCITY , u = 0m/s

final velocity. , v. = 35m/s

distance. , s = 0.7km

= 0.7×1000

= 700m

acceleration , a. = ?

v^2 = u^2 + 2as

35^2 = 0^2 + 2×a×700

1225. = 1400a

1225/1400 = a

0.875m/s^2 =a

time , t = ?

s = ut +1/2 at^2

700. = 0×t + 1/2×0.875×t^2

700. = 0.4375t^2

700/0.4375 = t^2

1600. = t^2

40^2 = t^2

40 SEC = t

Discussion

34.	C. The foot of an elephant has an areaof 2200kg., find the pressureexerted by the elephant on theground. (g=10m/s2)
Answer» ANSWER: SORRY wrong question..MAKE CORRECTIONS because UNIT of Area is m^2 and unit of mass is kg

34.

C. The foot of an elephant has an areaof 2200kg., find the pressureexerted by the elephant on theground. (g=10m/s2)

Answer»

ANSWER:

SORRY wrong question..MAKE CORRECTIONS because UNIT of Area is m^2 and unit of mass is kg

Discussion

35.	Does anybody have last years Ryan CBSE question papers??
Answer» Explanation: no DUDE i only used allinone it is very super BUY it u can get GUD marks in board EXAM. i have got 406 in 12th

35.

Does anybody have last years Ryan CBSE question papers??

Answer»

Explanation:

no DUDE i only used allinone it is very super BUY it u can get GUD marks in board EXAM. i have got 406 in 12th

Discussion

36.	Which value put in to this the contener is same
Answer» Explanation: 100N so that they are in EQUILIBRIUM PLZ MARK as BRAINLIEST

36.

Which value put in to this the contener is same

Answer»

Explanation:

100N so that they are in EQUILIBRIUM

PLZ MARK as BRAINLIEST

Discussion

37.	A gun of mass 10kg fires 4 bullets per second. The mass of each bullet is 20 g and the velocityof the bullet when it leaves the gun is 300 ms. The force required to hold the gun while firing(a) 6 N(c) 24 N(b) 8 N(d) 240 N
Answer» Answer: hope you COULD understand if not ASK me another TIME

37.

A gun of mass 10kg fires 4 bullets per second. The mass of each bullet is 20 g and the velocityof the bullet when it leaves the gun is 300 ms. The force required to hold the gun while firing(a) 6 N(c) 24 N(b) 8 N(d) 240 N

Answer»

Answer:

hope you COULD understand if not ASK me another TIME

Discussion

38.	Electric potential in a region is v=4x²-3y²-9z². Find the electric field at a pt. p(3,4,5).
Answer» ANSWER: -138 Explanation: HOPE it will be HELPFUL for U...❤❤

38.

Electric potential in a region is v=4x²-3y²-9z². Find the electric field at a pt. p(3,4,5).

Answer»

ANSWER:

-138

Explanation:

HOPE it will be HELPFUL for U...❤❤

Discussion

39.	An arrow is shot in air. Its range os 200m and its time of flight is 5sec. Of g=10m/s^2. Then the horizontal component of velocity and the maximum height will be
Answer» EXPLANATION: PLEASE FOLLOW me if you LIKE my SOLUTION

39.

An arrow is shot in air. Its range os 200m and its time of flight is 5sec. Of g=10m/s^2. Then the horizontal component of velocity and the maximum height will be

Answer»

EXPLANATION:

PLEASE FOLLOW me if you LIKE my SOLUTION

Discussion

40.	Why does centre of mass lie outside the body sometimes
Answer» Answer: In the case of a SINGLE rigid body, the center of MASS is fixed in relation to the body, and if the body has uniform density, it will be located at the centroid. The center of mass may be located outside the PHYSICAL body, as is SOMETIMES the case for hollow or open-shaped objects, such as a horseshoe.Explanation: Mark me brainliest

40.

Why does centre of mass lie outside the body sometimes

Answer»

Answer:

In the case of a SINGLE rigid body, the center of MASS is fixed in relation to the body, and if the body has uniform density, it will be located at the centroid. The center of mass may be located outside the PHYSICAL body, as is SOMETIMES the case for hollow or open-shaped objects, such as a horseshoe.Explanation:

Mark me brainliest

Discussion

41.	The output form of a full-wave rectifier is (1) an AC voltage (2) a DC voltage (3) zero (4) a pulsating unidirectional voltage
Answer» ANSWER: alternating CURRENT in the pulse manner, but ACTUALLY not in unidirection so answer is (a).

41.

The output form of a full-wave rectifier is (1) an AC voltage (2) a DC voltage (3) zero (4) a pulsating unidirectional voltage

Answer»

ANSWER:

alternating CURRENT in the pulse manner,

but ACTUALLY not in unidirection

so answer is (a).

Discussion

42.	What is unbalanced force with effects
Answer» Answer: UNBALANCED Force: Any two force acting on each other, which are not equal and OPPOSITE are unbalanced force. if the force force are unbalanced force, the effect don not cancel each other. When the force acting on a body is unbalanced then the net force is not ZERO and the MOTION of object changes.

42.

What is unbalanced force with effects

Answer»

Answer:

UNBALANCED Force:

Any two force acting on each other, which are not equal and OPPOSITE are unbalanced force.

if the force force are unbalanced force, the effect don not cancel each other. When the force acting on a body is unbalanced then the net force is not ZERO and the MOTION of object changes.

Discussion

43.	Compare the radii of two nuclei with mass numbers 8 in 64 also compare the densities
Answer» ANSWER: $\frac{d_{1}}{d_{2}}=\frac{1}{1}=1 : 1$ EXPLANATION: The mass number of the RADII of the two nuclei is given as 8 and 64 meaning The radius of the nuclei is the cube ROOT of the mass number of the element given $A_{1}=8, A_{2}=64$ $\frac{R_{1}}{R_{2}}=\left(\frac{A_{1}}{A_{2}}\right)^{1 / 3}$ $\frac{R_{1}}{R_{2}}=\left(\frac{8}{64}\right)^{1 / 3}$ $\frac{R_{1}}{R_{2}}=\frac{2}{4}=\frac{1}{2}$ Therefore, the radius of the two nuclei which depends on their mass number is given as 1:2 and on the other hand. The DENSITY of all the nuclei is considered same, meaning the ratio between the density of the two nuclei is $\frac{d_{1}}{d_{2}}=\frac{1}{1}=1 : 1$

43.

Compare the radii of two nuclei with mass numbers 8 in 64 also compare the densities

Answer»

ANSWER:

$\frac{d_{1}}{d_{2}}=\frac{1}{1}=1 : 1$

EXPLANATION:

The mass number of the RADII of the two nuclei is given as 8 and 64 meaning

The radius of the nuclei is the cube ROOT of the mass number of the element given

$A_{1}=8, A_{2}=64$

$\frac{R_{1}}{R_{2}}=\left(\frac{A_{1}}{A_{2}}\right)^{1 / 3}$

$\frac{R_{1}}{R_{2}}=\left(\frac{8}{64}\right)^{1 / 3}$

$\frac{R_{1}}{R_{2}}=\frac{2}{4}=\frac{1}{2}$

Therefore, the radius of the two nuclei which depends on their mass number is given as 1:2 and on the other hand. The DENSITY of all the nuclei is considered same, meaning the ratio between the density of the two nuclei is

$\frac{d_{1}}{d_{2}}=\frac{1}{1}=1 : 1$

Discussion

44.	Answers these three questions even one if possible
Answer» ANSWER: because their is UNSEEN FORCE is APPLY

44.

Answers these three questions even one if possible

Answer»

ANSWER:

because their is UNSEEN FORCE is APPLY

Discussion

45.	State the rule for the direction of the magnetic field produced around a current carrying conductor. Draw a sketch of the pattern of field lines due to a current carrying conductor.
Answer» it states that if you are holding the CURRENT CARRYING comductor in your right hand such that the THUMB points towards the direction of the current,then the direction in which the FINGERS point gives the direction of magnetic lines. this rule is aslo called Maxwell's CORKSCREW rule.

Discussion

46.	27.A water jet, whose cross sectional are is 'a strikes awall making an angle theta with the normal andrebounds elastically. The velocity of water of density'd' is v. Force exerted on wall is :-(1) 2 avềd coso(3) 2 avd cos(2) 2 avéd sino(4) avd coso
Answer» ANSWER: OPTION 3 will be answer

46.

27.A water jet, whose cross sectional are is 'a strikes awall making an angle theta with the normal andrebounds elastically. The velocity of water of density'd' is v. Force exerted on wall is :-(1) 2 avềd coso(3) 2 avd cos(2) 2 avéd sino(4) avd coso

Answer»

ANSWER:

OPTION 3 will be answer

Discussion

47.	What is polar vector
Answer» Explanation: In physics, a polar vector is a vector such as the radius vector that REVERSES SIGN when the coordinate axes are reversed. Polar vectors are the type of vector usually simply known as "vectors." In contrast, pseudovectors (also CALLED AXIAL vectors) do not REVERSE sign when the coordinate axes are reversed.

47.

What is polar vector

Answer»

Explanation:

In physics, a polar vector is a vector such as the radius vector that REVERSES SIGN when the coordinate axes are reversed. Polar vectors are the type of vector usually simply known as "vectors." In contrast, pseudovectors (also CALLED AXIAL vectors) do not REVERSE sign when the coordinate axes are reversed.

Discussion

48.	Examples of dispersion of light in our daily lifedispe
Answer» Explanation: An example of a dispersion is throwing LITTLE pieces of PAPER all over a floor. An example of a dispersion is the colored rays of LIGHT COMING from a prism which has been hung in a sunny WINDOW.

48.

Examples of dispersion of light in our daily lifedispe

Answer»

Explanation:

An example of a dispersion is throwing LITTLE pieces of PAPER all over a floor. An example of a dispersion is the colored rays of LIGHT COMING from a prism which has been hung in a sunny WINDOW.

Discussion

49.	Can a convex mirror ever form real image ? justify
Answer» Answer: yes CONVEX mirror can ALSO form REAL form as WELL.

49.

Can a convex mirror ever form real image ? justify

Answer»

Answer:

yes CONVEX mirror can ALSO form REAL form as WELL.

Discussion

50.	A force of 4 N acts on a body of mass 2 kg for 4 sec , assuming the body to be initially at rest ,find a) the distance covered in 10 sec after the force start acting ?
Answer» ANSWER: a) distance TRAVELLED in 10 seconds = 160M EXPLANATION: PLEASE MARK IT AS A BRAINLIEST ANSWER

50.

A force of 4 N acts on a body of mass 2 kg for 4 sec , assuming the body to be initially at rest ,find a) the distance covered in 10 sec after the force start acting ?

Answer»

ANSWER:

a) distance TRAVELLED in 10 seconds = 160M

EXPLANATION:

PLEASE MARK IT AS A BRAINLIEST ANSWER

Discussion

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