67486 + Interview Questions in Secondary School in Physics

1.	The ratio of specific charge of an electron to that of a proton is(1) 1:1(2) 1837 : 1(3) 1 : 1837
Answer» ANSWER: 1:1 Explanation: because this is a RIGHT answer

1.

The ratio of specific charge of an electron to that of a proton is(1) 1:1(2) 1837 : 1(3) 1 : 1837

Answer»

ANSWER:

1:1

Explanation:

because this is a RIGHT answer

Discussion

2.	If the work done is 24 joule and charge is 2 columbh find voltage
Answer» $\boxed{\boxed{\underline{\huge{Answer}}}}$ if *work* *DONE* is 24j *and* *CHARGE* is 2 *couloumb* *then* *voltage* is $\pink{volt=joule/couloumb}$ $\pink{volt=24j/2c}$ $\pink{volt=12v}$

2.

If the work done is 24 joule and charge is 2 columbh find voltage

Answer»

$\boxed{\boxed{\underline{\huge{Answer}}}}$

if work DONE is 24j and CHARGE is 2 couloumb then voltage is

$\pink{volt=joule/couloumb}$

$\pink{volt=24j/2c}$

$\pink{volt=12v}$

Discussion

3.	Three partides P, Q and Rsituated at point A onthe circular path ofradius 10 m. All threeparticles moves alongdifferentpath and reaches at point B shown in ligue then theratio of distance traveed by particle P&Q
Answer» EXPLANATION: ndndkdkdofkfmwlwoow

3.

Three partides P, Q and Rsituated at point A onthe circular path ofradius 10 m. All threeparticles moves alongdifferentpath and reaches at point B shown in ligue then theratio of distance traveed by particle P&Q

Answer»

EXPLANATION:

ndndkdkdofkfmwlwoow

Discussion

4.	CH3 means? in physicsChapter: Source of energy.
Answer» Answer. A methyl group is an alkyl derived from methane, CONTAINING one carbon atom BONDED to three hydrogen atoms — CH3. In formulas, the group is often abbreviated Me. Such hydrocarbon groups occur in many organic COMPOUNDS. It is a very stable group in most molecules. While the methyl group is usually part of a LARGER molecule, it can be found on its own in any of three forms: anion, CATION or radical. The anion has eight valence electrons, the radical seven and the cation six. All three forms are highly reactive and rarely observed.

4.

CH3 means? in physicsChapter: Source of energy.

Answer»

Answer.

A methyl group is an alkyl derived from methane, CONTAINING one carbon atom BONDED to three hydrogen atoms — CH3. In formulas, the group is often abbreviated Me. Such hydrocarbon groups occur in many organic COMPOUNDS. It is a very stable group in most molecules. While the methyl group is usually part of a LARGER molecule, it can be found on its own in any of three forms: anion, CATION or radical. The anion has eight valence electrons, the radical seven and the cation six. All three forms are highly reactive and rarely observed.

Discussion

5.	Rhea takes 15 minutes to go from her home to school and 20 minutes for her return journey.If the distance between the school and the home is 3.5 km, what is heri] Average speedii] Average velocity
Answer» ANSWER: AVERAGE SPEED is 35/7 that MEANS 5kilometer per/hrs

5.

Rhea takes 15 minutes to go from her home to school and 20 minutes for her return journey.If the distance between the school and the home is 3.5 km, what is heri] Average speedii] Average velocity

Answer»

ANSWER:

AVERAGE SPEED is 35/7 that MEANS 5kilometer per/hrs

Discussion

6.	Mention 6 desired characteristics of an ideal source of energy
Answer» Answer: Non POLLUTING High availability High CALORIFIC value safe and convenient to use Easy to TRANSPORT Economic and AFFORDABLE

6.

Mention 6 desired characteristics of an ideal source of energy

Answer»

Answer:

Non POLLUTING

High availability

High CALORIFIC value

safe and convenient to use

Easy to TRANSPORT

Economic and AFFORDABLE

Discussion

7.	State the cause of release of energy in a nuclear fission reaction. List any three demerits ofnuclear power generation.
Answer» Answer: Nuclear FISSION in fissile fuels is the result of the nuclear excitation energy produced when a fissile nucleus captures a neutron. This energy, resulting from the neutron capture, is a result of the attractive nuclear force acting between the neutron and nucleus. 3 demerits: Expensive to Build. Despite being relatively inexpensive to operate, nuclear power PLANTS are INCREDIBLY expensive to build—and the cost keeps rising. Accidents. ... Produces RADIOACTIVE Waste. ... Impact on the Environment. ... Security Threat. ... LIMITED Fuel Supply. Explanation: thats the answer. hope it helps

7.

State the cause of release of energy in a nuclear fission reaction. List any three demerits ofnuclear power generation.

Answer»

Answer:

Nuclear FISSION in fissile fuels is the result of the nuclear excitation energy produced when a fissile nucleus captures a neutron. This energy, resulting from the neutron capture, is a result of the attractive nuclear force acting between the neutron and nucleus.

3 demerits:

Expensive to Build. Despite being relatively inexpensive to operate, nuclear power PLANTS are INCREDIBLY expensive to build—and the cost keeps rising.

Accidents. ...

Produces RADIOACTIVE Waste. ...

Impact on the Environment. ...

Security Threat. ...

LIMITED Fuel Supply.

Explanation:

thats the answer. hope it helps

Discussion

8.	What is speed of gravity??if u don't know then plz don't answeri need right answer no spammer plz
Answer» Answer: Speed of gavity The speed of gravity is the rate, in meters per second or other standard units, at which gravitational FIELDS or effects propagate through space. We all know light obeys a speed limit — roughly 186,000 miles per second. Nothing TRAVELS FASTER. But why should gravity travel at the same speed? That question REQUIRES a quick dive into Albert Einstein's general relativity, or THEORY of gravity — the same theory that predicted gravitational waves a century ago. Hope it helps u Mark it as brainliest.. Thanks..

8.

What is speed of gravity??if u don't know then plz don't answeri need right answer no spammer plz

Answer»

Answer:

Speed of gavity

The speed of gravity is the rate, in meters per second or other standard units, at which gravitational FIELDS or effects propagate through space.

We all know light obeys a speed limit — roughly 186,000 miles per second. Nothing TRAVELS FASTER. But why should gravity travel at the same speed? That question REQUIRES a quick dive into Albert Einstein's general relativity, or THEORY of gravity — the same theory that predicted gravitational waves a century ago.

Hope it helps u

Mark it as brainliest..

Thanks..

Discussion

9.	D. Find the odd-one out. Give reason for your choice.1. Kilogram, newton, second, metre.2. Day, (metric ton, year, century,3. Clock, wrist watch, wall clock, stop watch)4. Cylinder, burette, milkman's measure, beam balance5. (Micron, second, angstrom, multimeter.
Answer» ANSWER: NEWTON EXPLANATION: because it is NAMED after a SCIENTIST

9.

D. Find the odd-one out. Give reason for your choice.1. Kilogram, newton, second, metre.2. Day, (metric ton, year, century,3. Clock, wrist watch, wall clock, stop watch)4. Cylinder, burette, milkman's measure, beam balance5. (Micron, second, angstrom, multimeter.

Answer»

ANSWER:

NEWTON

EXPLANATION:

because it is NAMED after a SCIENTIST

Discussion

10.	Write the expression for young 's modulus of sting and explain symbol used
Answer» I think u should SEARCH this question on google I m confident that u will find UR SATISFIED answer I hope u GOT help.

10.

Write the expression for young 's modulus of sting and explain symbol used

Answer»

I think u should SEARCH this question on google

I m confident that u will find UR SATISFIED answer

I hope u GOT help.

Discussion

11.	If time taken is 20mandatory the current is 10a find charge
Answer» Answer: Is it mandatory to file form INC 20A? ... EXTRACT of Section 10A of Companies ACT, 2013: Extract of RULE 23A ... DUE date for the first time FILING of “Form 20A” ...

11.

If time taken is 20mandatory the current is 10a find charge

Answer»

Answer:

Is it mandatory to file form INC 20A? ... EXTRACT of Section 10A of Companies ACT, 2013: Extract of RULE 23A ... DUE date for the first time FILING of “Form 20A” ...

Discussion

12.	How are stress and deforming force related
Answer» STRESS is OPPOSITE of DEFORMING forces According to me

Discussion

13.	As per recent understanding light consists of
Answer» ANSWER: LUMINOUS PARTICLES an subzetup of CRISTO CHEMICALS.

13.

As per recent understanding light consists of

Answer»

ANSWER:

LUMINOUS PARTICLES an subzetup of CRISTO CHEMICALS.

Discussion

14.	Write the expression for stress
Answer» ANSWER: ANGRY and SAD face Explanation: will be there

14.

Write the expression for stress

Answer»

ANSWER:

ANGRY and SAD face

Explanation:

will be there

Discussion

15.	What are the conditions for columbs law
Answer» Answer: the morning and Sunday night for a WEEK and the company is the most expensive of the YEAR for a long PERIOD and a few weeks before Christmas is a GOOD idea and you

15.

What are the conditions for columbs law

Answer»

Answer:

the morning and Sunday night for a WEEK and the company is the most expensive of the YEAR for a long PERIOD and a few weeks before Christmas is a GOOD idea and you

Discussion

16.	A river of width 200 flows at 5 metre per second a man crosses the river in the shortest time of 25 seconds if there is no flow and screen with the same velocity the time taken to cross the river is
Answer» 25 sec Explanation: we KNOW that; T=d/VsrCos¢ (T)min=d/VsrCos0 means, (T)min=d/Vsr 25=200/Vsr Vsr=8 m/s Now TIME TAKEN to cross the river when there is no FLOW of River will be; Y-direction. V=VsrCos¢ =VsrCos0 =Vsr So, Time taken=distance/speed T=200/8 T=25 sec

16.

A river of width 200 flows at 5 metre per second a man crosses the river in the shortest time of 25 seconds if there is no flow and screen with the same velocity the time taken to cross the river is

Answer»

25 sec

Explanation:

we KNOW that;

T=d/VsrCos¢

(T)min=d/VsrCos0

means,

(T)min=d/Vsr

25=200/Vsr

Vsr=8 m/s

Now TIME TAKEN to cross the river when there is no FLOW of River will be;

Y-direction.

V=VsrCos¢

=VsrCos0

=Vsr

So, Time taken=distance/speed

T=200/8

T=25 sec

Discussion

17.	the wavelength and frequency of a sound wave in a certain medium is 25cm and 1500hz keeping the medium same if wavelength is changed to 35cm find velocity of sound and find new frequency
Answer» ANSWER: Mhshdjndndhdhdhbdbdbdbbsbsbsbsns

17.

the wavelength and frequency of a sound wave in a certain medium is 25cm and 1500hz keeping the medium same if wavelength is changed to 35cm find velocity of sound and find new frequency

Answer»

ANSWER:

Mhshdjndndhdhdhbdbdbdbbsbsbsbsns

Discussion

18.	Applications of moment of force in daily life
Answer» This is the ANSWER ACCORDING to me. I HOPE it HELPED.

18.

Applications of moment of force in daily life

Answer»

This is the ANSWER ACCORDING to me.

I HOPE it HELPED.

Discussion

19.	Check whether the equation is correct T=2pie root of g/l where t is time g is acceleration l is length
Answer» HERE IS YOUR ANSWER:- The given equation, T = 2π√(g/l) is wrong. correct equation is:- T = 2π√(l/g). *please* mark BRAINLIEST**

19.

Check whether the equation is correct T=2pie root of g/l where t is time g is acceleration l is length

Answer»

HERE IS YOUR ANSWER:-

The given equation,

T = 2π√(g/l) is wrong.

correct equation is:-

T = 2π√(l/g).

please mark BRAINLIEST

Discussion

20.	A train started from station A at 8 and articles the station B at 12 noon the distance beter en two station A and B is 160 km find average speed of train
Answer» Answer: 40 m/s Explanation: TOTAL time taken = 4 h [ 10 - 8 ] total DISTANCE = 160 km average speed = total distance / total time v = 160 / 4 = 40 m/s hope it helped and pleeease mark as brainliest:)

20.

A train started from station A at 8 and articles the station B at 12 noon the distance beter en two station A and B is 160 km find average speed of train

Answer»

Answer:

40 m/s

Explanation:

TOTAL time taken = 4 h [ 10 - 8 ]

total DISTANCE = 160 km

average speed = total distance / total time

v = 160 / 4

= 40 m/s

hope it helped and pleeease mark as brainliest:)

Discussion

21.	It is difficult to walk on ice because
Answer» Answer: YES because it. is sloopy and it is filled with WATER only its outer part is in SOLID form...

21.

It is difficult to walk on ice because

Answer»

Answer:

YES because it. is sloopy and it is filled with WATER only its outer part is in SOLID form...

Discussion

22.	Why school bag have wide strip
Answer» Answer: because when the SURFACE area is INCREASE then the PRESSURE will decrease Explanation: mark me as BRAINLIST

22.

Why school bag have wide strip

Answer»

Answer:

because when the SURFACE area is INCREASE then the PRESSURE will decrease

Explanation:

mark me as BRAINLIST

Discussion

23.	Why the pressure on ground is more when a men is walking than when he is standing
Answer» ANSWER: becase pressure increase when AREAIS less and pressure decrease when AREA is more

23.

Why the pressure on ground is more when a men is walking than when he is standing

Answer»

ANSWER:

becase pressure increase when AREAIS less and pressure decrease when AREA is more

Discussion

24.	HeyaA farmer moves along the boundary of a square field of side 10 m in 40s.what will be the magnitude of displacement of the farmer at the end of 2 minute and 20 seconds ?
Answer» ANSWER: Here, Side of the given square field = 10m so, perimeter of a square = 4side = 10 m 4 = 40 m Farmer takes 40 s to move ALONG the boundary. Displacement after 2 minutes 20 s = 2 * 60 s + 20 s = 140 seconds since in 40 s farmer moves 40 m Therefore, in 1S the distance COVERED by farmer = 40 / 40 m = 1m Therefore, in 140s distance covered by farmer = 1 � 140 m = 140 m. Now, number of rotation to cover 140 along the boundary= Total Distance / Perimeter = 140 m / 40 m = 3.5 ROUND Thus, after 3.5 round farmer will at point C of the field. $Therefore, \: Displacement \: AC = \sqrt{ {(10m)}^{2} + ( {10m)}^{2} } \\ = \sqrt{ {100m}^{2} + {100m}^{2} } \\ = \sqrt{ {200m}^{2} } \\ = 10 \sqrt{2} m \\ = 10 \times 1.414 \\ = 14.14m$ Thus, after 2 min 20 seconds the displacement of farmer will be equal to 14.14 m north east from initial position. $Hope \: This \: Will \: help \: you$ ❤

24.

HeyaA farmer moves along the boundary of a square field of side 10 m in 40s.what will be the magnitude of displacement of the farmer at the end of 2 minute and 20 seconds ?

Answer»

ANSWER:

Here, Side of the given square field = 10m

so, perimeter of a square = 4*side = 10 m * 4 = 40 m

Farmer takes 40 s to move ALONG the boundary.

Displacement after 2 minutes 20 s = 2 * 60 s + 20 s = 140 seconds

since in 40 s farmer moves 40 m

Therefore, in 1S the distance COVERED by farmer = 40 / 40 m = 1m

Therefore, in 140s distance covered by farmer = 1 � 140 m = 140 m.

Now, number of rotation to cover 140 along the boundary= Total Distance / Perimeter

= 140 m / 40 m = 3.5 ROUND

Thus, after 3.5 round farmer will at point C of the field.

$Therefore, \: Displacement \: AC = \sqrt{ {(10m)}^{2} + ( {10m)}^{2} } \\ = \sqrt{ {100m}^{2} + {100m}^{2} } \\ = \sqrt{ {200m}^{2} } \\ = 10 \sqrt{2} m \\ = 10 \times 1.414 \\ = 14.14m$

Thus, after 2 min 20 seconds the displacement of farmer will be equal to 14.14 m north east from initial position.

$Hope \: This \: Will \: help \: you$ ❤

Discussion

25.	General curvilinear coordinate dr
Answer» GEOMETRY, curvilinear coordinates are a coordinate system for EUCLIDEAN SPACE in which the coordinate lines may be curved. ... This means that ONE can convert a point given in a Cartesian coordinate system to its curvilinear coordinates and back.

25.

General curvilinear coordinate dr

Answer»

GEOMETRY, curvilinear coordinates are a coordinate system for EUCLIDEAN SPACE in which the coordinate lines may be curved. ... This means that ONE can convert a point given in a Cartesian coordinate system to its curvilinear coordinates and back.

Discussion

26.	Why the tip of needle is sharp
Answer» BECAUSE THURST TAKES PLACE HERE SHARP POINT GIVES ME AN IDEAL PRESSURE.PRESSURE CONCENTRATED AT ONLY ONE POINT WHICH MAKES OBJECT TO MAKE HOLE OR TO TEAR

26.

Why the tip of needle is sharp

Answer»

BECAUSE THURST TAKES PLACE HERE SHARP POINT GIVES ME AN IDEAL PRESSURE.PRESSURE CONCENTRATED AT ONLY ONE POINT WHICH MAKES OBJECT TO MAKE HOLE OR TO TEAR

Discussion

27.	horizontal force of 500 Newton pulls two masses 10 kg and 20 kg connected by a light string and placed on a frictionless horizontal table. 1) what is the tension in the string if the force is applied on a 20 kg mass.? 2) what is the tension in the string if the force applied on the 10 kg mass?
Answer» EXPLANATION: STRING is same but tension is diffrent I thinking over this for MANY time

27.

horizontal force of 500 Newton pulls two masses 10 kg and 20 kg connected by a light string and placed on a frictionless horizontal table. 1) what is the tension in the string if the force is applied on a 20 kg mass.? 2) what is the tension in the string if the force applied on the 10 kg mass?

Answer»

EXPLANATION:

STRING is same but tension is diffrent

I thinking over this for MANY time

Discussion

28.	If action is always equal to reaction explain why a cart pulled by horse can be moved.
Answer» ANSWER: DOUBLE DISPLACEMENT REACTION

28.

If action is always equal to reaction explain why a cart pulled by horse can be moved.

Answer»

ANSWER:

DOUBLE DISPLACEMENT REACTION

Discussion

29.	If a motorcycle covers 4.8 km in 10 min then calculate the distance travelled by it in 1 sec
Answer» Answer: 100 METER COVERS in 1 SEC

29.

If a motorcycle covers 4.8 km in 10 min then calculate the distance travelled by it in 1 sec

Answer»

Answer:

100 METER COVERS in 1 SEC

Discussion

30.	Why a sharp knife cut better than a blunt knife
Answer» EXPLANATION: Because of the presence of sharp particles present in a new knife, it cuts better WHEREAS when an OLD ward knife is used, the sharpness of the knife reduces and thus is not better USEABLE

30.

Why a sharp knife cut better than a blunt knife

Answer»

EXPLANATION:

Because of the presence of sharp particles present in a new knife, it cuts better

WHEREAS when an OLD ward knife is used, the sharpness of the knife reduces and thus is not better USEABLE

Discussion

31.	What is acceleration of a car which started from rest and acquired a velocity of 40 m/ s in 8 s?
Answer» Answer: 5m/s^2 Explanation: we KNOW that, a=dv/dt. a=40-0/8 a=40/8 a=5m/s^2. (the S.I UNIT of accereration is m/s^2.)

31.

What is acceleration of a car which started from rest and acquired a velocity of 40 m/ s in 8 s?

Answer»

Answer:

5m/s^2

Explanation:

we KNOW that,

a=dv/dt.

a=40-0/8

a=40/8

a=5m/s^2.

(the S.I UNIT of accereration is m/s^2.)

Discussion

32.	A min. hand of a clock is 7cm long calculate the distance covered and displacement of min. hand from 9am to9:30am
Answer» ANSWER: distance = 77 cm and DISPLACEMENT = 14 cm Explanation: Distance covered = 1/2 TIMES the circumference of the CLOCK => 1/2 * πr² where r = radius of the circle = length of the minute hand => distance covered = 1/2 * 22/7 * 7 * 7 = 11 * 7 = 77 cm Displacement = 2 * radius = 2 * 7 = 14 cm Therefore distance = 77 cm and displacement =14 cm Please brainlist my answer, if helpful!

32.

A min. hand of a clock is 7cm long calculate the distance covered and displacement of min. hand from 9am to9:30am

Answer»

ANSWER: distance = 77 cm and DISPLACEMENT = 14 cm

Explanation:

Distance covered = 1/2 TIMES the circumference of the CLOCK

=> 1/2 * πr² where r = radius of the circle = length of the minute hand

=> distance covered = 1/2 * 22/7 * 7 * 7 = 11 * 7 = 77 cm

Displacement = 2 * radius = 2 * 7 = 14 cm

Therefore distance = 77 cm and displacement =14 cm

Please brainlist my answer, if helpful!

Discussion

33.	A train is travelling aur a speed of 90km/h. Brakes are applied so as to produced a uniform acceleration of -0.5m/s. Find how far the train will go before it is brought to rest.Tomorrow is my exam and I want the solution
Answer» $\textbf{\underline{\underline{According\:to\:the\:Question}}}$ ★Given :- a = -0.5m/s² u = 90 km/hr ★Convert it into m/s $\tt{\rightarrow\dfrac{90\times 1000m}{60\times 60}=25m/s}$ v = 0 m/s ★To Find :- s = ? ★Solution :- $\textbf{\boxed{Third\; Equation\;of\;Motion}}$ ${\boxed{v^{2} = u^{2} + 2as}}$ ★We can ALSO write :- ${\boxed{s=\dfrac{v^{2}-u^{2}}{2a}}}$ ★Substitute the VALUES we get :- $\tt{\rightarrow a =\dfrac{(0)^{2}-{25}^{2}}{2\times(-0.5)}}$ $\tt{\rightarrow a =\dfrac{-25\times {25}^2}{-2\times 0.5}}$ $\tt{\rightarrow a =\dfrac{625}{1}}$ = 625 m $\boxed{\begin{minipage}{11 cm} Additional Information \\ \\ $\ Distance = Speed\times Time \\ \\ Displacement=Velocity\times time \\ \\ Average\; Speed = \dfrac{Initial\:\:Speed+Final\:\:Speed}{2} $\end{minipage}}$

33.

A train is travelling aur a speed of 90km/h. Brakes are applied so as to produced a uniform acceleration of -0.5m/s. Find how far the train will go before it is brought to rest.Tomorrow is my exam and I want the solution

Answer»

$\textbf{\underline{\underline{According\:to\:the\:Question}}}$

★Given :-

a = -0.5m/s²

u = 90 km/hr

★Convert it into m/s

$\tt{\rightarrow\dfrac{90\times 1000m}{60\times 60}=25m/s}$

v = 0 m/s

★To Find :-

s = ?

★Solution :-

$\textbf{\boxed{Third\; Equation\;of\;Motion}}$

${\boxed{v^{2} = u^{2} + 2as}}$

★We can ALSO write :-

${\boxed{s=\dfrac{v^{2}-u^{2}}{2a}}}$

★Substitute the VALUES we get :-

$\tt{\rightarrow a =\dfrac{(0)^{2}-{25}^{2}}{2\times(-0.5)}}$

$\tt{\rightarrow a =\dfrac{-25\times {25}^2}{-2\times 0.5}}$

$\tt{\rightarrow a =\dfrac{625}{1}}$

= 625 m

$\boxed{\begin{minipage}{11 cm} Additional Information \\ \\ $\ Distance = Speed\times Time \\ \\ Displacement=Velocity\times time \\ \\ Average\; Speed = \dfrac{Initial\:\:Speed+Final\:\:Speed}{2} $\end{minipage}}$

Discussion

34.	Please do it fast tomorrow is my exam.
Answer» Answer :- Speed of train , u = 90 km/h = 90 × 5/18 = 25 m/s acceleration , a = -0.5 m/s² Use FORMULA, v = u + at Finally train will be rest so, final velocity, v = 0 0 = 25 - 0.5t 25 = 0.5t ⇒t = 50 sec Again, use formula, S = UT + 1/2at² Where S is distance TRAVELLED before stop S = 25 × 50 - 1/2 × 0.5 × 50² = 1250 - 1/2 × 0.5 × 2500 = 1250 - 625 = 625 m Hence, distance travelled = 625m and time taken = 50 sec

34.

Please do it fast tomorrow is my exam.

Answer»

Answer :-

Speed of train , u = 90 km/h = 90 × 5/18 = 25 m/s

acceleration , a = -0.5 m/s²

Use FORMULA,

v = u + at

Finally train will be rest so, final velocity, v = 0

0 = 25 - 0.5t

25 = 0.5t ⇒t = 50 sec

Again, use formula,

S = UT + 1/2at²

Where S is distance TRAVELLED before stop

S = 25 × 50 - 1/2 × 0.5 × 50²

= 1250 - 1/2 × 0.5 × 2500

= 1250 - 625

= 625 m

Hence, distance travelled = 625m and time taken = 50 sec

Discussion

35.	Ent103. Block A of mass m rests on the plank B of mass3m which is free to slide on a frictionless horizo-ntal surface. The coefficient of friction betweenthe block and plank is 0.2. If a horizontal forceof magnitude 2 mg is applied to the plank B,the acceleration of A relative to the plank andrelative to the ground respectively, are:A2mgis10lackt oflack
Answer» GO to this to GET ANSWER

35.

Ent103. Block A of mass m rests on the plank B of mass3m which is free to slide on a frictionless horizo-ntal surface. The coefficient of friction betweenthe block and plank is 0.2. If a horizontal forceof magnitude 2 mg is applied to the plank B,the acceleration of A relative to the plank andrelative to the ground respectively, are:A2mgis10lackt oflack

Answer»

GO to this to GET ANSWER

Discussion

36.	State the law of conservation of energy
Answer» ☺️Hola mate☺️ The direction of INDUCED EMF in a circuit is such that it always opposes the very CAUSE for which it is due. Thanks...☺️☺️☺️☻☺️☺️☺️ plzz MARK me as brainliest and follow me.

36.

State the law of conservation of energy

Answer»

☺️Hola mate☺️

The direction of INDUCED EMF in a circuit is such that it always opposes the very CAUSE for which it is due.

Thanks...☺️☺️☺️☻☺️☺️☺️

plzz MARK me as brainliest and follow me.

Discussion

37.	VoThe angular displacement of an object in uniformcircular motion is radian in every 0.01 s. Itsfrequency of revolution is
Answer» EXPLANATION: I'm not very MUCH SURE about the ANSWER

37.

VoThe angular displacement of an object in uniformcircular motion is radian in every 0.01 s. Itsfrequency of revolution is

Answer»

EXPLANATION:

I'm not very MUCH SURE about the ANSWER

Discussion

38.	Physical significance of electric field
Answer» ⚫__¶¶Ħ€Ř€'Ş ỮŘ ΔŇŞŴ€Ř ¶¶___⚫ Physical Significance of Electric Field. An electric field is an elegant WAY of characterising the ELECTRICAL environment of a SYSTEM of CHARGES. The electric field at any POINT in space around a system of charges represents the force a unit positive test charge would experience if placed at that point....!!!!___ ✔️Dont forget to mark brainliest ✔️

38.

Physical significance of electric field

Answer»

⚫__¶¶Ħ€Ř€'Ş ỮŘ ΔŇŞŴ€Ř ¶¶___⚫

Physical Significance of Electric Field. An electric field is an elegant WAY of characterising the ELECTRICAL environment of a SYSTEM of CHARGES. The electric field at any POINT in space around a system of charges represents the force a unit positive test charge would experience if placed at that point....!!!!___

✔️Dont forget to mark brainliest ✔️

Discussion

39.	Why sound became fainter and fainter after proceed a long distance?
Answer» Answer: Sound spreads in a sphere, like a BALLOON that gets inflated. As the sound spreads over a larger area the sound gets fainter. When the amount of energy at the start is constant, the energy decreases when it has to EFFECT a larger area. ... This will cause the sound to go lower and lower but also to sound fainter. Please mark as BRAINALIST,I need only ONE more brainaliest answer. THANK YOU!!!

39.

Why sound became fainter and fainter after proceed a long distance?

Answer»

Answer:

Sound spreads in a sphere, like a BALLOON that gets inflated. As the sound spreads over a larger area the sound gets fainter. When the amount of energy at the start is constant, the energy decreases when it has to EFFECT a larger area. ... This will cause the sound to go lower and lower but also to sound fainter.

Please mark as BRAINALIST,I need only ONE more brainaliest answer.

THANK YOU!!!

Discussion

40.	Describe an experiment to prove rectilinear propogation of light
Answer» Explanation: The RECTILINEAR propagation of light means that light travels in straight LINES as a wave. This can be observed in the well-defined shadows formed when an object BLOCKS a light source and through the USE of a pinhole camera

40.

Describe an experiment to prove rectilinear propogation of light

Answer»

Explanation:

The RECTILINEAR propagation of light means that light travels in straight LINES as a wave. This can be observed in the well-defined shadows formed when an object BLOCKS a light source and through the USE of a pinhole camera

Discussion

41.	Example of solid, liquid and gas things at schoolPlease answer it a lot ( i need 8 for each)
Answer» Answer: Hey Hi... Explanation: Solid - Table salt , Table sugar, Water ice ,Frozen carbondioxide ( dry ice) , Glass Rock, Most Metals ,Wood ,Gold, Sand ,Brick ,and Steel . Liquid - Water, Milk, Blood, urine ,Gasoline, MERCURY, Bromine ,Wine, Honey ,Coffee, Rubbing alcohol . Gas - Air , Helium , Nitrogen, Carbon dioxide, Water vapour, Hydrogen, Natural gas, Propane, Oxygen ,Ozone , Hydrogen sulphide . Please mark my answer as a brainliest answer ❤️ ❤️❤️❤️ I hope it HELPS you ❤️❤️❤️❤️ Follow me ❤️❤️❤️ I'm from Karnataka ❤️❤️❤️ ನಾನು ಕನ್ನಡತಿ ❤️❤️❤️❤️

41.

Example of solid, liquid and gas things at schoolPlease answer it a lot ( i need 8 for each)

Answer»

Answer:

Hey Hi...

Explanation:

Solid - Table salt , Table sugar, Water ice ,Frozen carbondioxide ( dry ice) , Glass Rock, Most Metals ,Wood ,Gold, Sand ,Brick ,and Steel .

Liquid - Water, Milk, Blood, urine ,Gasoline, MERCURY, Bromine ,Wine, Honey ,Coffee, Rubbing alcohol .

Gas - Air , Helium , Nitrogen, Carbon dioxide, Water vapour, Hydrogen, Natural gas, Propane, Oxygen ,Ozone , Hydrogen sulphide .

Please mark my answer as a brainliest answer ❤️ ❤️❤️❤️

I hope it HELPS you ❤️❤️❤️❤️

Follow me ❤️❤️❤️

I'm from Karnataka ❤️❤️❤️

ನಾನು ಕನ್ನಡತಿ ❤️❤️❤️❤️

Discussion

42.	Find odd man out energy,power,force
Answer» ANSWER: Find ODD one out is force Explanation: PLZ follow me

42.

Find odd man out energy,power,force

Answer»

ANSWER:

Find ODD one out is force

Explanation:

PLZ follow me

Discussion

43.	: 3. Subtract the following120.46 and 15.392.
Answer» ANSWER: =105.068 Explanation: MARK me as BRAINLIST

43.

: 3. Subtract the following120.46 and 15.392.

Answer»

ANSWER:

=105.068

Explanation:

MARK me as BRAINLIST

Discussion

44.	A particle moves in a straight line, so that x =√tThen its acceleration is proportional to(1) Velocity(2) (Velocity)3/2(3) (Velocity)³(4) (Velocity)2
Answer» ACCELERATION is proportional to velocity ³ by differenciating the EQ GIVEN for x u can find a and v then COMPARE their equations

44.

A particle moves in a straight line, so that x =√tThen its acceleration is proportional to(1) Velocity(2) (Velocity)3/2(3) (Velocity)³(4) (Velocity)2

Answer»

ACCELERATION is proportional to velocity ³

by differenciating the EQ GIVEN for x u can find a and v

then COMPARE their equations

Discussion

45.	When white light crosses theboundary between air andglass, it can split up into thecolors of the spectrum.Explain, in terms of speed, whythe light behaves like this.Need it ASAP!(Will mark as most BRAINLIEST answer)Deliberate wrong answers will be reported!THNX!!✌
Answer» Explanation: This is due to the change in speed of light with wavelength when a *white* light passes through air to glass(Prism). " When a white light enter the first surface of a prism , then light of different colour due to their different speed in glass , get deviated through different angle toward the base of prism ". Note : The splitting of light take place at first surface of prism and on second surface only refraction take place ( from glass to air). Thank you

45.

When white light crosses theboundary between air andglass, it can split up into thecolors of the spectrum.Explain, in terms of speed, whythe light behaves like this.Need it ASAP!(Will mark as most BRAINLIEST answer)Deliberate wrong answers will be reported!THNX!!✌

Answer»

Explanation:

This is due to the change in speed of light with wavelength when a white light passes through air to glass(Prism).

" When a white light enter the first surface of a prism , then light of different colour due to their different speed in glass , get deviated through different angle toward the base of prism ".

Note : The splitting of light take place at first surface of prism and on second surface only refraction take place ( from glass to air).

Thank you

Discussion

46.	A man weighs 840N on earth surface and 640N on another planet. Calculate planet's gravitational force
Answer» Hey, there! Here's your answer. Let the mass of the MAN be 'm' kg Since *mass remains unaffected from WHEREVER you are*, mass of man on EARTH = mass of man on the other planet = m kg. Weight = mass × acceleration due to GRAVITY For Earth, W = m ×g = 840 N For the other planet, W' = m × g' = 640 N ☛ Now, divide both the equations, $\frac{W}{W'} = \frac{m \times g}{m \times g'} = \frac{840}{640} \\ \\ \frac{g}{g'} = \frac{21}{16} \\ \\ g' = \frac{16}{21} g = 7.619m {s}^{ - 2} (approx.)$ Hope that helps. Thanks.

46.

A man weighs 840N on earth surface and 640N on another planet. Calculate planet's gravitational force

Answer»

Hey, there!

Here's your answer.

Let the mass of the MAN be 'm' kg

Since mass remains unaffected from WHEREVER you are, mass of man on EARTH = mass of man on the other planet = m kg.

Weight = mass × acceleration due to GRAVITY

For Earth, W = m ×g = 840 N

For the other planet, W' = m × g' = 640 N

☛ Now, divide both the equations,

$\frac{W}{W'} = \frac{m \times g}{m \times g'} = \frac{840}{640} \\ \\ \frac{g}{g'} = \frac{21}{16} \\ \\ g' = \frac{16}{21} g = 7.619m {s}^{ - 2} (approx.)$

Hope that helps.

Thanks.

Discussion

47.	What is the principal of fountain ???
Answer» Answer: A basic fountain CONSISTS of a fountain PUMP, a fountain nozzle and a fountain basin. ... This FORCES a stream of water to rise up from the fountain and COME crashing down BACK into the basin. The basin is filled with enugh water that the pump never runs out of water to pump through the nozzle. Explanation: I hope it helps you dear ❗❗

47.

What is the principal of fountain ???

Answer»

Answer:

A basic fountain CONSISTS of a fountain PUMP, a fountain nozzle and a fountain basin. ... This FORCES a stream of water to rise up from the fountain and COME crashing down BACK into the basin. The basin is filled with enugh water that the pump never runs out of water to pump through the nozzle.

Explanation:

I hope it helps you dear ❗❗

Discussion

48.	Why is only carbon used and not any othwr element for determining atomic mass unit?
Answer» Answer: it is because the carbon is the only ELEMENT to give the exact isotope of 12 as a mass. the isotope of carbon with 6 proton and 6 neutron in its nucleus (carbon -12) give a mass of 12 which is NECESSARY for DETERMINING the atomic mass unit. carbon is also used to DETERMINE age.. hope u go.t.....

48.

Why is only carbon used and not any othwr element for determining atomic mass unit?

Answer»

Answer:

it is because the carbon is the only ELEMENT to give the exact isotope of 12 as a mass.

the isotope of carbon with 6 proton and 6 neutron in its nucleus (carbon -12) give a mass of 12 which is NECESSARY for DETERMINING the atomic mass unit.

carbon is also used to DETERMINE age..

hope u go.t.....

Discussion

49.	A uniform chainof mass M and length L is lting on a frictionless
Answer» EXPLANATION: COMPLETE............

49.

A uniform chainof mass M and length L is lting on a frictionless

Answer»

EXPLANATION:

COMPLETE............

Discussion

50.	A red shirt when seen in green light appear black. why?
Answer» Answer: The reason it appears red is because it reflects red colour and absorbs the REST. HENCE when GREEN light is shone on it, it absorbs all of the green light and not REFLECTING ANYTHING. Hence, it appears black. please mark me brainliest plssssssss anu1381 plss mark me brainliest

50.

A red shirt when seen in green light appear black. why?

Answer»

Answer:

The reason it appears red is because it reflects red colour and absorbs the REST. HENCE when GREEN light is shone on it, it absorbs all of the green light and not REFLECTING ANYTHING. Hence, it appears black.

please mark me brainliest plssssssss

anu1381 plss mark me brainliest

Discussion

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Solid - Table salt , Table sugar, Water ice ,Frozen carbondioxide ( dry ice) , Glass Rock, Most Metals ,Wood ,Gold, Sand ,Brick ,and Steel .

Liquid - Water, Milk, Blood, urine ,Gasoline, MERCURY, Bromine ,Wine, Honey ,Coffee, Rubbing alcohol .

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Please mark my answer as a brainliest answer ❤️ ❤️❤️❤️

I hope it HELPS you ❤️❤️❤️❤️

Follow me ❤️❤️❤️

I'm from Karnataka ❤️❤️❤️

ನಾನು ಕನ್ನಡತಿ ❤️❤️❤️❤️

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