13232 + Interview Questions in Physics

1.	Loudness of sound is expressed in___.
Answer» Loudness of sound is expressed in___.

Discussion

2.	At time t=0 a ball has velocity 0.5ms, and Its velocity is decreasing at the rate of 0.5ms2. What is the time at which the ball will be at rest?
Answer» At time $t = 0$ a ball has velocity $0.5 \frac{m}{s}$ , and Its velocity is decreasing at the rate of $0.5 \frac{m}{s^{2}}$ . What is the time at which the ball will be at rest?

Discussion

3.	Electromagnets are used in ___.
Answer» Electromagnets are used in ___.

Discussion

4.	With respect to a satellite going around the earth in a circular orbit, which of the following statements are wrong?
Answer» With respect to a satellite going around the earth in a circular orbit, which of the following statements are wrong?

Discussion

5.	What would have been the temperature of earth atmosphere in absence of green house gases in it ?
Answer» What would have been the temperature of earth atmosphere in absence of green house gases in it ?

Discussion

6.	Determine the time in which the smaller block reaches the other end of block (size of the small block is negligible)
Answer» Determine the time in which the smaller block reaches the other end of block (size of the small block is negligible)

6.

Determine the time in which the smaller block reaches the other end of block (size of the small block is negligible)

Answer»

Determine the time in which the smaller block reaches the other end of block (size of the small block is negligible)

Discussion

7.	What is a longitudinal wave ? In which medium : solid, liquid or gas, can it be produced ?
Answer» What is a longitudinal wave ? In which medium : solid, liquid or gas, can it be produced ?

Discussion

8.	It was a rainy day in Bangalore. Rohit was sitting beside the window when he saw a lightning. He started his stopwatch. He found that after 22 seconds of lightning it's thunder was heard. Calculate the height of the clouds which caused this lightning. Given, Speed of light =3×108 ms and Speed of Sound =340ms.
Answer» It was a rainy day in Bangalore. Rohit was sitting beside the window when he saw a lightning. He started his stopwatch. He found that after 22 seconds of lightning it's thunder was heard. Calculate the height of the clouds which caused this lightning. Given, Speed of light $= 3 \times 10^{8}$ $\frac{m}{s}$ and Speed of Sound $= 340 \frac{m}{s}$ .

Discussion

9.	Sort the process flow of electricity generation using a hydroelectric power plant in the correct order:
Answer» Sort the process flow of electricity generation using a hydroelectric power plant in the correct order:

Discussion

10.	State two advantages and two disadvantages of using nuclear energy for producing electricity.
Answer» State two advantages and two disadvantages of using nuclear energy for producing electricity.

Discussion

11.	Barometers can be used for which of the following purposes?
Answer» Barometers can be used for which of the following purposes?

Discussion

12.	Which of the following gets attracted towards a magnet?
Answer» Which of the following gets attracted towards a magnet?

Discussion

13.	The magnetic field exists around:-
Answer» The magnetic field exists around:-

Discussion

14.	If we drop a small stone ,and a ball of cotton of the same size in air why do these two not fall simultaneously???
Answer» If we drop a small stone ,and a ball of cotton of the same size in air why do these two not fall simultaneously???

Discussion

15.	Joseph jogs from 1 and 8 to another and B of a straight 300m road in 2 minutes 50 seconds and then turns around and job 100m back to. See in another 1 minute what are Joseph's average speed and velocity in jogging from a to b and from a to c
Answer» Joseph jogs from 1 and 8 to another and B of a straight 300m road in 2 minutes 50 seconds and then turns around and job 100m back to. See in another 1 minute what are Joseph's average speed and velocity in jogging from a to b and from a to c

Discussion

16.	A body undergoes 3 displacements ab that is 5m in the direction east bc that is 4m in a direction 30° east of north and cd that is 7m in the west direction calculate the resultant displacement
Answer» A body undergoes 3 displacements ab that is 5m in the direction east bc that is 4m in a direction 30° east of north and cd that is 7m in the west direction calculate the resultant displacement

Discussion

17.	Q100. With reference to The Five hundred meter Aperture Spherical Telescope (FAST), consider the following statements: 1. It is the world's largest single aperture radio telescope. 2. It aims to find extra- terrestrial life. Which of the above statement(s) is/are correct?
Answer» Q100. With reference to The Five hundred meter Aperture Spherical Telescope (FAST), consider the following statements: 1. It is the world's largest single aperture radio telescope. 2. It aims to find extra- terrestrial life. Which of the above statement(s) is/are correct?

17.

Q100. With reference to The Five hundred meter Aperture Spherical Telescope (FAST), consider the following statements: 1. It is the world's largest single aperture radio telescope. 2. It aims to find extra- terrestrial life. Which of the above statement(s) is/are correct?

Answer»

Q100. With reference to The Five hundred meter Aperture Spherical Telescope (FAST), consider the following statements:

1. It is the world's largest single aperture radio telescope.

2. It aims to find extra- terrestrial life.

Which of the above statement(s) is/are correct?

Discussion

18.	A nucleus of mass M+△m is at rest and it decays into two daughter nuclei of equal mass M2 each. The speed of the light is c. Then what is the speed of the daughter nuclei?
Answer» A nucleus of mass $M + △ m$ is at rest and it decays into two daughter nuclei of equal mass $\frac{M}{2}$ each. The speed of the light is $c$ . Then what is the speed of the daughter nuclei?

Discussion

19.	A car initially at rest starts with a uniform acceleration and gains a velocity of twenty meter per second in four second the displacement of car is
Answer» A car initially at rest starts with a uniform acceleration and gains a velocity of twenty meter per second in four second the displacement of car is

Discussion

20.	A object weight 10N,when measured on the surface of the earth,what would be it's weight measured on the surface of moon . what is the acceleration due to gravity on moon?
Answer» A object weight 10N,when measured on the surface of the earth,what would be it's weight measured on the surface of moon . what is the acceleration due to gravity on moon?

Discussion

21.	The frequency associated with photon of radiation having a wavelength of 6000A° is ( in Hz )
Answer» The frequency associated with photon of radiation having a wavelength of 6000A° is ( in Hz )

Discussion

22.	A man throws balls with the same speed vertically upwards one after the other at an interval of 2 seconds. What should be the speed of the throw so that more than two balls are in the sky at any time (Given g = 10m/s2)
Answer» A man throws balls with the same speed vertically upwards one after the other at an interval of 2 seconds. What should be the speed of the throw so that more than two balls are in the sky at any time (Given g = $10 m / s^{2}$ )

Discussion

23.	Pieces of bursting cracker fall in all directions . Please explain the reason briefly.
Answer» Pieces of bursting cracker fall in all directions . Please explain the reason briefly.

Discussion

24.	What is the net force acting on a body of mass m, moving with an acceleration a?
Answer» What is the net force acting on a body of mass m, moving with an acceleration a?

Discussion

25.	Distinguish between the uniform velocity and the variable velocity.
Answer» Distinguish between the uniform velocity and the variable velocity.

Discussion

26.	a stone is dropped from the height 4.9 m high roof find out the following a.time taken to fall 4.9m b.velocity just before it reaches the ground c. what is its acceleration after 1s and 2 s from start
Answer» a stone is dropped from the height 4.9 m high roof find out the following a.time taken to fall 4.9m b.velocity just before it reaches the ground c. what is its acceleration after 1s and 2 s from start

Discussion

27.	a man slaps his hand near a mountain and hears the Eco after 4 seconds. if the speed of sound under these conditions be 330 meter per second what is the distance of mountains from the man :- A) 660 m B) 440 m C) 330 m D) 550 m
Answer» a man slaps his hand near a mountain and hears the Eco after 4 seconds. if the speed of sound under these conditions be 330 meter per second what is the distance of mountains from the man :- A) 660 m B) 440 m C) 330 m D) 550 m

27.

a man slaps his hand near a mountain and hears the Eco after 4 seconds. if the speed of sound under these conditions be 330 meter per second what is the distance of mountains from the man :- A) 660 m B) 440 m C) 330 m D) 550 m

Answer»

a man slaps his hand near a mountain and hears the Eco after 4 seconds. if the speed of sound under these conditions be 330 meter per second what is the distance of mountains from the man :-

A) 660 m

B) 440 m

C) 330 m

D) 550 m

Discussion

28.	The pressure acting on a bolt at a depth of 6 cm in a liquid of 1420 kilogram per cubic metre, is.
Answer» The pressure acting on a bolt at a depth of 6 cm in a liquid of 1420 kilogram per cubic metre, is.

Discussion

29.	Three resistors, 2 Ω, 3 Ω and 6 Ω are connected in parallel in a circuit. The total resistance of the circuit is
Answer» Three resistors, $2 Ω, 3 Ω$ and $6 Ω$ are connected in parallel in a circuit. The total resistance of the circuit is

Discussion

30.	If you drop a rubber ball from rest from a height of 3 m, what is the maximum height to which it will bounce back in the presence of air?
Answer» If you drop a rubber ball from rest from a height of 3 m, what is the maximum height to which it will bounce back in the presence of air?

Discussion

31.	How fast should a person with mass 50kg walk so that his kinetic energy is 625 J?
Answer» How fast should a person with mass 50kg walk so that his kinetic energy is 625 J?

Discussion

32.	5 x 10 5 Pa = ___ bar.
Answer» 5 x 10 $^{5}$ Pa = ___ bar.

Discussion

33.	Gravitational force acts on all objects in proportion to their masses, still a heavy object does not fall faster than a light object because
Answer» Gravitational force acts on all objects in proportion to their masses, still a heavy object does not fall faster than a light object because

Discussion

34.	A body is in dynamic equilibrium when it is
Answer» A body is in dynamic equilibrium when it is

Discussion

35.	Ray of light falling parallel to the principal axis in the above diagram follows which path after reflection?
Answer» Ray of light falling parallel to the principal axis in the above diagram follows which path after reflection?

35.

Ray of light falling parallel to the principal axis in the above diagram follows which path after reflection?

Answer»

Ray of light falling parallel to the principal axis in the above diagram follows which path after reflection?

Discussion

36.	In the given figure, a=15 m/s2 represents the total acceleration of a particle moving in the clockwise direction in a circle of radius R=2.5 m at a given instant of time. The speed of the particle is
Answer» In the given figure, $a = 15 m / s^{2}$ represents the total acceleration of a particle moving in the clockwise direction in a circle of radius $R = 2.5 m$ at a given instant of time. The speed of the particle is

Discussion

37.	Question 4 (b) An archer stretches her bow while taking aim at the target. She then releases the arrow, which begins to move towards the target. Based on this information fill up the gaps in the following statements using the following terms: muscular, contact, non-contact, gravity, friction, shape, attraction (b) The force applied by the archer to stretch the bow is an example of ___ force.
Answer» Question 4 (b) An archer stretches her bow while taking aim at the target. She then releases the arrow, which begins to move towards the target. Based on this information fill up the gaps in the following statements using the following terms: muscular, contact, non-contact, gravity, friction, shape, attraction (b) The force applied by the archer to stretch the bow is an example of ___ force.

Discussion

38.	A force of 50N is applied on an area of 2m2. Pressure applied to the area is equal to ___ Pa.
Answer» A force of 50N is applied on an area of $2 m^{2}$ . Pressure applied to the area is equal to ___ Pa.

Discussion

39.	A force produces an acceleration of 5.0cm/s2 when it acts on a body of mass 20 g. The force in newton is:
Answer» A force produces an acceleration of $5.0 c m / s^{2}$ when it acts on a body of mass 20 g. The force in newton is:

Discussion

40.	The reflection taking place on a rough surface, for e.g. a rock, is an example of ______
Answer» The reflection taking place on a rough surface, for e.g. a rock, is an example of ______

Discussion

41.	Name the quantity whose unit is : (a) kilowatt (b) kilowatt-hour
Answer» Name the quantity whose unit is : (a) kilowatt (b) kilowatt-hour

41.

Name the quantity whose unit is : (a) kilowatt (b) kilowatt-hour

Answer»

Name the quantity whose unit is :

(a) kilowatt

(b) kilowatt-hour

Discussion

42.	A cylinder of relative density ρr<1 and height h floats in water with its axis vertical. The height of cylinder submerged is .
Answer» A cylinder of relative density $ρ_{r} < 1$ and height $h$ floats in water with its axis vertical. The height of cylinder submerged is .

Discussion

43.	Identify the kind of motion in a car moving with constant speed turning around a curve.
Answer» Identify the kind of motion in a car moving with constant speed turning around a curve.

Discussion

44.	A 1,000 kg car moving at a speed of 20 ms−1 is brought to rest in a distance of 50 m. Calculate the net force acting on the car. Take the direction of movement of car as the positive direction.
Answer» A $1, 000 k g$ car moving at a speed of $20 m s^{- 1}$ is brought to rest in a distance of $50 m$ . Calculate the net force acting on the car. Take the direction of movement of car as the positive direction.

Discussion

45.	Mark the correct option. (Given: Q = Heat energy m = Mass of the object ΔT = difference in temperature c = specific heat capacity)
Answer» Mark the correct option. (Given: Q = Heat energy m = Mass of the object ΔT = difference in temperature c = specific heat capacity)

Discussion

46.	Why a person is likely to get more hurt when he falls on concrete floor than on loose mud or sand ? [2 MARKS]
Answer» Why a person is likely to get more hurt when he falls on concrete floor than on loose mud or sand ? [2 MARKS]

Discussion

47.	Heat energy required to melt 10 kg ice at its melting point will be _____. (The latent heat of fusion of water = 333.55 kJ kg−1).
Answer» Heat energy required to melt $10 k g$ ice at its melting point will be _____. (The latent heat of fusion of water = $333.55 k J k g^{- 1}$ ).

Discussion

48.	If we increase the temperature of air from 0oC to 22oC, then the speed of sound would
Answer» If we increase the temperature of air from 0^oC to 22^oC, then the speed of sound would

Discussion

49.	A point object forms a real, enlarged image, in front of a concave mirror of curvature radius 40 cm. If the distance between the object and the image be 30 cm, what will be the object distance?
Answer» A point object forms a real, enlarged image, in front of a concave mirror of curvature radius 40 cm. If the distance between the object and the image be 30 cm, what will be the object distance?

Discussion

50.	Three resistances each of 4 Ohm are connected in the form of an equilateral triangle. The effective resistance between any two corners is:
Answer» Three resistances each of 4 Ohm are connected in the form of an equilateral triangle. The effective resistance between any two corners is:

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Loudness of sound is expressed in___.

At time t=0 a ball has velocity 0.5ms, and Its velocity is decreasing at the rate of 0.5ms2. What is the time at which the ball will be at rest?

Electromagnets are used in ___.

With respect to a satellite going around the earth in a circular orbit, which of the following statements are wrong?

What would have been the temperature of earth atmosphere in absence of green house gases in it ?

Determine the time in which the smaller block reaches the other end of block (size of the small block is negligible)

What is a longitudinal wave ? In which medium : solid, liquid or gas, can it be produced ?

Sort the process flow of electricity generation using a hydroelectric power plant in the correct order:

State two advantages and two disadvantages of using nuclear energy for producing electricity.

Barometers can be used for which of the following purposes?

Which of the following gets attracted towards a magnet?

The magnetic field exists around:-

If we drop a small stone ,and a ball of cotton of the same size in air why do these two not fall simultaneously???

Joseph jogs from 1 and 8 to another and B of a straight 300m road in 2 minutes 50 seconds and then turns around and job 100m back to. See in another 1 minute what are Joseph's average speed and velocity in jogging from a to b and from a to c

A body undergoes 3 displacements ab that is 5m in the direction east bc that is 4m in a direction 30° east of north and cd that is 7m in the west direction calculate the resultant displacement

Q100. With reference to The Five hundred meter Aperture Spherical Telescope (FAST), consider the following statements: 1. It is the world's largest single aperture radio telescope. 2. It aims to find extra- terrestrial life. Which of the above statement(s) is/are correct?

A nucleus of mass M+△m is at rest and it decays into two daughter nuclei of equal mass M2 each. The speed of the light is c. Then what is the speed of the daughter nuclei?

A car initially at rest starts with a uniform acceleration and gains a velocity of twenty meter per second in four second the displacement of car is

A object weight 10N,when measured on the surface of the earth,what would be it's weight measured on the surface of moon . what is the acceleration due to gravity on moon?

The frequency associated with photon of radiation having a wavelength of 6000A° is ( in Hz )

A man throws balls with the same speed vertically upwards one after the other at an interval of 2 seconds. What should be the speed of the throw so that more than two balls are in the sky at any time (Given g = 10m/s2)

Pieces of bursting cracker fall in all directions . Please explain the reason briefly.

What is the net force acting on a body of mass m, moving with an acceleration a?

Distinguish between the uniform velocity and the variable velocity.

a stone is dropped from the height 4.9 m high roof find out the following a.time taken to fall 4.9m b.velocity just before it reaches the ground c. what is its acceleration after 1s and 2 s from start

a man slaps his hand near a mountain and hears the Eco after 4 seconds. if the speed of sound under these conditions be 330 meter per second what is the distance of mountains from the man :- A) 660 m B) 440 m C) 330 m D) 550 m

The pressure acting on a bolt at a depth of 6 cm in a liquid of 1420 kilogram per cubic metre, is.

Three resistors, 2 Ω, 3 Ω and 6 Ω are connected in parallel in a circuit. The total resistance of the circuit is

If you drop a rubber ball from rest from a height of 3 m, what is the maximum height to which it will bounce back in the presence of air?

How fast should a person with mass 50kg walk so that his kinetic energy is 625 J?

5 x 10 5 Pa = ___ bar.

Gravitational force acts on all objects in proportion to their masses, still a heavy object does not fall faster than a light object because

A body is in dynamic equilibrium when it is

Ray of light falling parallel to the principal axis in the above diagram follows which path after reflection?

In the given figure, a=15 m/s2 represents the total acceleration of a particle moving in the clockwise direction in a circle of radius R=2.5 m at a given instant of time. The speed of the particle is

A force of 50N is applied on an area of 2m2. Pressure applied to the area is equal to ___ Pa.

A force produces an acceleration of 5.0cm/s2 when it acts on a body of mass 20 g. The force in newton is:

The reflection taking place on a rough surface, for e.g. a rock, is an example of ______

Name the quantity whose unit is : (a) kilowatt (b) kilowatt-hour

A cylinder of relative density ρr&lt;1 and height h floats in water with its axis vertical. The height of cylinder submerged is .

Identify the kind of motion in a car moving with constant speed turning around a curve.

A 1,000 kg car moving at a speed of 20 ms−1 is brought to rest in a distance of 50 m. Calculate the net force acting on the car. Take the direction of movement of car as the positive direction.

Mark the correct option. (Given: Q = Heat energy m = Mass of the object ΔT = difference in temperature c = specific heat capacity)

Why a person is likely to get more hurt when he falls on concrete floor than on loose mud or sand ? [2 MARKS]

Heat energy required to melt 10 kg ice at its melting point will be _____. (The latent heat of fusion of water = 333.55 kJ kg−1).

If we increase the temperature of air from 0oC to 22oC, then the speed of sound would

A point object forms a real, enlarged image, in front of a concave mirror of curvature radius 40 cm. If the distance between the object and the image be 30 cm, what will be the object distance?

Three resistances each of 4 Ohm are connected in the form of an equilateral triangle. The effective resistance between any two corners is:

A cylinder of relative density ρr<1 and height h floats in water with its axis vertical. The height of cylinder submerged is .