13232 + Interview Questions in Physics

1.	The natural tendency of objects to resist a change in their state of rest or motion is called ___.
Answer» The natural tendency of objects to resist a change in their state of rest or motion is called ___.

Discussion

2.	There are two mutually perpendicular forces acting on an object. One force acts in the direction of motion of the object and the direction of other force is perpendicular to the motion. During this interval, the kinetic energy of the body changes from 25 J to 100 J. The work done by the force acting perpendicular to the direction of the object is:
Answer» There are two mutually perpendicular forces acting on an object. One force acts in the direction of motion of the object and the direction of other force is perpendicular to the motion. During this interval, the kinetic energy of the body changes from $25 J$ to $100 J$ . The work done by the force acting perpendicular to the direction of the object is:

Discussion

3.	If the gravitational force is acting on each and every object in this universe then why is the space expanding?
Answer» If the gravitational force is acting on each and every object in this universe then why is the space expanding?

Discussion

4.	A man lifts a luggage of 10 kg from the ground and puts it on his head 1.7 m above the ground. Calculate work done by man on the luggage. Take acceleration due to gravity g = 10 m/s2
Answer» A man lifts a luggage of $10 k g$ from the ground and puts it on his head $1.7 m$ above the ground. Calculate work done by man on the luggage. Take acceleration due to gravity $g = 10 m / s^{2}$

Discussion

5.	Body A of density (ρA) is floating in the water. When another body B having density (ρB=1500 kg m−3) and same dimensions is placed on body A, then the system just sinks in the water. What fraction of body A was originally immersed in the water? The density of water is ρw=1000 kg m−3.
Answer» Body A of density $(ρ_{A})$ is floating in the water. When another body B having density $(ρ_{B} = 1500 k g m^{- 3})$ and same dimensions is placed on body A, then the system just sinks in the water. What fraction of body A was originally immersed in the water? The density of water is $ρ_{w} = 1000 k g m^{- 3}$ .

Discussion

6.	What results in the increaase of carbon dioxide contents of earth's atmosphere?
Answer» What results in the increaase of carbon dioxide contents of earth's atmosphere?

Discussion

7.	A piece of wood of uniform cross section and height 15 cm floats vertically with its height 10 cm in water and 12 cm in spirit. Find the density of (i) wood and (ii) spirit.
Answer» A piece of wood of uniform cross section and height 15 cm floats vertically with its height 10 cm in water and 12 cm in spirit. Find the density of (i) wood and (ii) spirit.

Discussion

8.	Biotic component consists of
Answer» Biotic component consists of

Discussion

9.	In the above figure, the arrows indicate the direction of forces F1 and F2 and the magnitudes of the respective force are given above the arrows. Towards which direction will the block move?
Answer» In the above figure, the arrows indicate the direction of forces $F_{1}$ and $F_{2}$ and the magnitudes of the respective force are given above the arrows. Towards which direction will the block move?

9.

In the above figure, the arrows indicate the direction of forces F1 and F2 and the magnitudes of the respective force are given above the arrows. Towards which direction will the block move?

Answer»

In the above figure, the arrows indicate the direction of forces $F_{1}$ and $F_{2}$ and the magnitudes of the respective force are given above the arrows.

Towards which direction will the block move?

Discussion

10.	Though action and reaction forces are equal in magnitude, yet they may not produce accelerations of equal magnitude.Why?
Answer» Though action and reaction forces are equal in magnitude, yet they may not produce accelerations of equal magnitude.Why?

Discussion

11.	An object of mass 1kg falls from a height of 20m and bounces back to a height of 5m. What is the change in momentum of the ball in kgm/s
Answer» An object of mass 1kg falls from a height of 20m and bounces back to a height of 5m. What is the change in momentum of the ball in kgm/s

Discussion

12.	A car travels a distance of 100 m with a constant acceleration and average velocity of 20 m/s the final velocity acquired by the car race is 25 m/s find the initial velocity and acceleration.
Answer» A car travels a distance of 100 m with a constant acceleration and average velocity of 20 m/s the final velocity acquired by the car race is 25 m/s find the initial velocity and acceleration.

Discussion

13.	A ball is thrown vertically upward from the top of a tower with an initial velocity of 19.6 metre per second. The ball reaches the ground after 5s. Calculate A. The height of the tower B. The velocity of ball reaching the ground
Answer» A ball is thrown vertically upward from the top of a tower with an initial velocity of 19.6 metre per second. The ball reaches the ground after 5s. Calculate A. The height of the tower B. The velocity of ball reaching the ground

13.

A ball is thrown vertically upward from the top of a tower with an initial velocity of 19.6 metre per second. The ball reaches the ground after 5s. Calculate A. The height of the tower B. The velocity of ball reaching the ground

Answer»

A ball is thrown vertically upward from the top of a tower with an initial velocity of 19.6 metre per second. The ball reaches the ground after 5s. Calculate

A. The height of the tower

B. The velocity of ball reaching the ground

Discussion

14.	There is a speaker in the room which is creating a sound. I can hear the sound clearly . According to this information,who is the source of the sound, the air particles or the speaker? And if air particles are the source of sound , give reason .
Answer» There is a speaker in the room which is creating a sound. I can hear the sound clearly . According to this information,who is the source of the sound, the air particles or the speaker? And if air particles are the source of sound , give reason .

Discussion

15.	A cyclist goes around a circular track once every 2 minutes . If the radius of a circle is 110 m calculate the speed and velocity.
Answer» A cyclist goes around a circular track once every 2 minutes . If the radius of a circle is 110 m calculate the speed and velocity.

Discussion

16.	A car covers a distance of 160 km in 2 h, and another 80 km in the next 1 h. Calculate the car's average speed in m s−1.22.22
Answer» A car covers a distance of $160 km$ in $2 h$ , and another $80 km$ in the next $1 h$ . Calculate the car's average speed in ${m s}^{- 1}$ . 22.22

Discussion

17.	When the metacenter of a floating body lies above the centre of gravity of the body then the body is said to be in
Answer» When the metacenter of a floating body lies above the centre of gravity of the body then the body is said to be in

17.

When the metacenter of a floating body lies above the centre of gravity of the body then the body is said to be in

Answer»

When the metacenter of a floating body lies above the centre of gravity of the body then the body is said to be in

Discussion

18.	Three different arrangements of media are given through which light rays are being passed. If total internal reflection is not happening at any interface, In which of the following will the emergent ray be parallel to the incident ray?
Answer» Three different arrangements of media are given through which light rays are being passed. If total internal reflection is not happening at any interface, In which of the following will the emergent ray be parallel to the incident ray?

Discussion

19.	Complete the following : (a) 1 g = ............................kg (b) 1 mg = ............................kg (c) 1 quintal = .............................kg (d) 1 a.m.u (or u) =..............................kg
Answer» Complete the following : (a) 1 g = ............................kg (b) 1 mg = ............................kg (c) 1 quintal = .............................kg (d) 1 a.m.u (or u) =..............................kg

19.

Complete the following : (a) 1 g = ............................kg (b) 1 mg = ............................kg (c) 1 quintal = .............................kg (d) 1 a.m.u (or u) =..............................kg

Answer»

Complete the following :

(a) 1 g = ............................kg

(b) 1 mg = ............................kg

(c) 1 quintal = .............................kg

(d) 1 a.m.u (or u) =..............................kg

Discussion

20.	Which of the following is/are contact force(s)?
Answer» Which of the following is/are contact force(s)?

Discussion

21.	Explain about induced current.
Answer» Explain about induced current.

Discussion

22.	A object has a mass of 20 kg on earth what will be the mass and weight on the moon.
Answer» A object has a mass of 20 kg on earth what will be the mass and weight on the moon.

Discussion

23.	50 g of copper is heated to increase its temperature by 10∘C. If the same quantity of heat is given to 10 g of water, what will be the rise in its temperature? Assume no state change. Specific heat of copper =420 J kg−1 ∘C Specific heat of water =4200 J kg−1 ∘C
Answer» $50 g$ of copper is heated to increase its temperature by $10^{\circ} C$ . If the same quantity of heat is given to $10 g$ of water, what will be the rise in its temperature? Assume no state change. Specific heat of copper $= 420 J k g^{- 1 \circ} C$ Specific heat of water $= 4200 J k g^{- 1 \circ} C$

Discussion

24.	Derive v=u+at,s=it+1÷2at.sq,F=ma
Answer» Derive v=u+at,s=it+1÷2at.sq,F=ma

Discussion

25.	Two objects,each of mass 1.5 kg,moving in a stragiht line but in opposite directions. the velocity of each object is 2.5 m/s before collision during which they stick together. what will be velocity after collision?
Answer» Two objects,each of mass 1.5 kg,moving in a stragiht line but in opposite directions. the velocity of each object is 2.5 m/s before collision during which they stick together. what will be velocity after collision?

Discussion

26.	A man pushes a box of 50 kg with a force of 80 Newton. What will be the acceleration of the box when its weight is halved?
Answer» A man pushes a box of 50 kg with a force of 80 Newton. What will be the acceleration of the box when its weight is halved?

Discussion

27.	Why army tank weighing more than 1tonnes rests upon a continuous chain
Answer» Why army tank weighing more than 1tonnes rests upon a continuous chain

Discussion

28.	A satellite is orbiting at a height of 10000 m. If the same satellite is orbiting at a height of 15000 m. Compare the acceleration due to gravity
Answer» A satellite is orbiting at a height of 10000 m. If the same satellite is orbiting at a height of 15000 m. Compare the acceleration due to gravity

Discussion

29.	Can a body have energy without having momentum? Why?
Answer» Can a body have energy without having momentum? Why?

Discussion

30.	Distinguish between infrasonic and ultrasonic.
Answer» Distinguish between infrasonic and ultrasonic.

Discussion

31.	When balanced forces act on a body, the body is:
Answer» When balanced forces act on a body, the body is:

Discussion

32.	What will happen to the force of gravity if the distance between two objects is reduced to half
Answer» What will happen to the force of gravity if the distance between two objects is reduced to half

Discussion

33.	If the magnitudes of distance and force are increased four times, then the magnitude of energy is increased by ___ times.
Answer» If the magnitudes of distance and force are increased four times, then the magnitude of energy is increased by ___ times.

Discussion

34.	The time interval between 24 to 52 seconds when the body travels the fastest is?
Answer» The time interval between 24 to 52 seconds when the body travels the fastest is?

34.

The time interval between 24 to 52 seconds when the body travels the fastest is?

Answer»

The time interval between 24 to 52 seconds when the body travels the fastest is?

Discussion

35.	What do you mean by negative and positive acceleration ? Explain.
Answer» What do you mean by negative and positive acceleration ? Explain.

Discussion

36.	An object remains in the state of rest or motion until any external force is applied because of
Answer» An object remains in the state of rest or motion until any external force is applied because of

Discussion

37.	Question 12 An object is placed at a distance of 10 cm from a convex mirror of focal length 15 cm. Find the position and nature of the image.
Answer» Question 12 An object is placed at a distance of 10 cm from a convex mirror of focal length 15 cm. Find the position and nature of the image.

Discussion

38.	Name the three convenient units used to measure length ranging from very short to very long value. How are they related to the S.I. unit ?
Answer» Name the three convenient units used to measure length ranging from very short to very long value. How are they related to the S.I. unit ?

Discussion

39.	Which of the following statement is/are true for a freely falling body?
Answer» Which of the following statement is/are true for a freely falling body?

Discussion

40.	Two balls at the same temperature collide. Which of the following gets conserved ?
Answer» Two balls at the same temperature collide. Which of the following gets conserved ?

Discussion

41.	The work done in moving a unit positive charge across two points in an electric circuit is a measure of _______.
Answer» The work done in moving a unit positive charge across two points in an electric circuit is a measure of _______.

Discussion

42.	A block, while going down an inclined plane, has an acceleration of 2 cm/s2 . What will be its velocity 4 s after the start ?
Answer» A block, while going down an inclined plane, has an acceleration of 2 $c m / s^{2}$ . What will be its velocity 4 s after the start ?

Discussion

43.	A block of certain mass is sliding on a smooth floor with a certain velocity. The work required to stop it is
Answer» A block of certain mass is sliding on a smooth floor with a certain velocity. The work required to stop it is

Discussion

44.	If the mass of one body is doubled, then the gravitational force F between two bodies become
Answer» If the mass of one body is doubled, then the gravitational force F between two bodies become

Discussion

45.	What is the acceleration of a van that starts from rest and attains a speed of 20 ms−1 in 25 s?
Answer» What is the acceleration of a van that starts from rest and attains a speed of $20 m s^{- 1}$ in $25 s$ ?

Discussion

46.	A body of mass 10 kg is moving on a circular track of radius 15 m. What is work done on it in one complete revolution? (Take g=10 ms−2)
Answer» A body of mass 10 kg is moving on a circular track of radius 15 m. What is work done on it in one complete revolution? (Take $g = 10 m s^{- 2}$ )

Discussion

47.	While playing a football match, Gaurav collided and got entangled with Shubhendu who was playing for opposite team and running from opposite side. The mass of Gaurav was 40 kg and the mass of Shubhendu was 60 kg. If Gaurav was running with a velocity of 5m/s and Shubhendu was running with a velocity of 7m/s, find the velocity and direction of both of the players after collision.(Assume no other forces)
Answer» While playing a football match, Gaurav collided and got entangled with Shubhendu who was playing for opposite team and running from opposite side. The mass of Gaurav was 40 kg and the mass of Shubhendu was 60 kg. If Gaurav was running with a velocity of 5m/s and Shubhendu was running with a velocity of 7m/s, find the velocity and direction of both of the players after collision.(Assume no other forces)

Discussion

48.	Find the distance covered by a particle during the time interval t=0 and t=4s for which the speed time graph is shown in figure [3 MARKS]
Answer» Find the distance covered by a particle during the time interval t=0 and t=4s for which the speed time graph is shown in figure [3 MARKS]

Discussion

49.	While an athlete is running at a constant acceleration of 4.5 ms−2, he exerts a force of 300N. What is the mass of the athlete?
Answer» While an athlete is running at a constant acceleration of $4.5 m s^{- 2}$ , he exerts a force of $300 N$ . What is the mass of the athlete?

Discussion

50.	Two mirrors A and B are placed at right angles to each other as shown in the figure. A ray of light incident on mirror A at an angle of 25∘ falls on mirror B after reflection. The angle of reflection for the ray reflected from mirror B would be
Answer» Two mirrors A and B are placed at right angles to each other as shown in the figure. A ray of light incident on mirror A at an angle of $25^{\circ}$ falls on mirror B after reflection. The angle of reflection for the ray reflected from mirror B would be

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

The natural tendency of objects to resist a change in their state of rest or motion is called ___.

If the gravitational force is acting on each and every object in this universe then why is the space expanding?

A man lifts a luggage of 10 kg from the ground and puts it on his head 1.7 m above the ground. Calculate work done by man on the luggage. Take acceleration due to gravity g = 10 m/s2

Body A of density (ρA) is floating in the water. When another body B having density (ρB=1500 kg m−3) and same dimensions is placed on body A, then the system just sinks in the water. What fraction of body A was originally immersed in the water? The density of water is ρw=1000 kg m−3.

What results in the increaase of carbon dioxide contents of earth's atmosphere?

A piece of wood of uniform cross section and height 15 cm floats vertically with its height 10 cm in water and 12 cm in spirit. Find the density of (i) wood and (ii) spirit.

Biotic component consists of

In the above figure, the arrows indicate the direction of forces F1 and F2 and the magnitudes of the respective force are given above the arrows. Towards which direction will the block move?

Though action and reaction forces are equal in magnitude, yet they may not produce accelerations of equal magnitude.Why?

An object of mass 1kg falls from a height of 20m and bounces back to a height of 5m. What is the change in momentum of the ball in kgm/s

A car travels a distance of 100 m with a constant acceleration and average velocity of 20 m/s the final velocity acquired by the car race is 25 m/s find the initial velocity and acceleration.

A ball is thrown vertically upward from the top of a tower with an initial velocity of 19.6 metre per second. The ball reaches the ground after 5s. Calculate A. The height of the tower B. The velocity of ball reaching the ground

There is a speaker in the room which is creating a sound. I can hear the sound clearly . According to this information,who is the source of the sound, the air particles or the speaker? And if air particles are the source of sound , give reason .

A cyclist goes around a circular track once every 2 minutes . If the radius of a circle is 110 m calculate the speed and velocity.

A car covers a distance of 160 km in 2 h, and another 80 km in the next 1 h. Calculate the car's average speed in m s−1.22.22

When the metacenter of a floating body lies above the centre of gravity of the body then the body is said to be in

Three different arrangements of media are given through which light rays are being passed. If total internal reflection is not happening at any interface, In which of the following will the emergent ray be parallel to the incident ray?

Complete the following : (a) 1 g = ............................kg (b) 1 mg = ............................kg (c) 1 quintal = .............................kg (d) 1 a.m.u (or u) =..............................kg

Which of the following is/are contact force(s)?

Explain about induced current.

A object has a mass of 20 kg on earth what will be the mass and weight on the moon.

50 g of copper is heated to increase its temperature by 10∘C. If the same quantity of heat is given to 10 g of water, what will be the rise in its temperature? Assume no state change. Specific heat of copper =420 J kg−1 ∘C Specific heat of water =4200 J kg−1 ∘C

Derive v=u+at,s=it+1÷2at.sq,F=ma

Two objects,each of mass 1.5 kg,moving in a stragiht line but in opposite directions. the velocity of each object is 2.5 m/s before collision during which they stick together. what will be velocity after collision?

A man pushes a box of 50 kg with a force of 80 Newton. What will be the acceleration of the box when its weight is halved?

Why army tank weighing more than 1tonnes rests upon a continuous chain

A satellite is orbiting at a height of 10000 m. If the same satellite is orbiting at a height of 15000 m. Compare the acceleration due to gravity

Can a body have energy without having momentum? Why?

Distinguish between infrasonic and ultrasonic.

When balanced forces act on a body, the body is:

What will happen to the force of gravity if the distance between two objects is reduced to half

If the magnitudes of distance and force are increased four times, then the magnitude of energy is increased by ___ times.

The time interval between 24 to 52 seconds when the body travels the fastest is?

What do you mean by negative and positive acceleration ? Explain.

An object remains in the state of rest or motion until any external force is applied because of

Question 12 An object is placed at a distance of 10 cm from a convex mirror of focal length 15 cm. Find the position and nature of the image.

Name the three convenient units used to measure length ranging from very short to very long value. How are they related to the S.I. unit ?

Which of the following statement is/are true for a freely falling body?

Two balls at the same temperature collide. Which of the following gets conserved ?

The work done in moving a unit positive charge across two points in an electric circuit is a measure of _______.

A block, while going down an inclined plane, has an acceleration of 2 cm/s2 . What will be its velocity 4 s after the start ?

A block of certain mass is sliding on a smooth floor with a certain velocity. The work required to stop it is

If the mass of one body is doubled, then the gravitational force F between two bodies become

What is the acceleration of a van that starts from rest and attains a speed of 20 ms−1 in 25 s?

A body of mass 10 kg is moving on a circular track of radius 15 m. What is work done on it in one complete revolution? (Take g=10 ms−2)

Find the distance covered by a particle during the time interval t=0 and t=4s for which the speed time graph is shown in figure [3 MARKS]

While an athlete is running at a constant acceleration of 4.5 ms−2, he exerts a force of 300N. What is the mass of the athlete?

Two mirrors A and B are placed at right angles to each other as shown in the figure. A ray of light incident on mirror A at an angle of 25∘ falls on mirror B after reflection. The angle of reflection for the ray reflected from mirror B would be