13232 + Interview Questions in Physics

1.	(a) how will you find the loss in weight of a solid when it is fully immersed in water, with the weight of water displaced by it?
Answer» (a) how will you find the loss in weight of a solid when it is fully immersed in water, with the weight of water displaced by it?

Discussion

2.	In the equations..... F1=GMem/R2 and.... F2=m*a Why are the both forces (F1 and F2) are equal?
Answer» In the equations..... F₁=GM_em/R² and.... F₂=m*a Why are the both forces (F₁ and F₂) are equal?

Discussion

3.	A particle is moving in a circle of diameter 20m. What is its distance and as per the table given below
Answer» A particle is moving in a circle of diameter 20m. What is its distance and as per the table given below

Discussion

4.	Write the common unit of density.
Answer» Write the common unit of density.

Discussion

5.	An electric bulb of 40watt is used 50 days at 5 hrs perday find the unit of energy consumed by bulband cost of using electricity at the rate of 10 rupees per unit
Answer» An electric bulb of 40watt is used 50 days at 5 hrs perday find the unit of energy consumed by bulband cost of using electricity at the rate of 10 rupees per unit

Discussion

6.	Speed of a body in uniform circular motion for radius, R and time period, T is given by:
Answer» Speed of a body in uniform circular motion for radius, $R$ and time period, $T$ is given by:

Discussion

7.	Explain the difference between potential energy and kinectic energy. Explain both in 4 points
Answer» Explain the difference between potential energy and kinectic energy. Explain both in 4 points

Discussion

8.	The mass of sun 2×1030 kg and mass of earth is 6×1024 kg . If the distance between is 1.5 × 108 km . Calculate the force of gravitation between. (G = 6.7 × 10-11)
Answer» The mass of sun 2×10³⁰ kg and mass of earth is 6×10²⁴kg . If the distance between is 1.5 × 10⁸km . Calculate the force of gravitation between. (G = 6.7 × 10^-11)

Discussion

9.	A body accelerates from rest at a constant rate and then decelerates at a constant rate to come to the rest. The ratio of times of acceleration to deceleration is 1/3.It achieves a maximum velocity of 3 m/s. If total time elapsed is 4√3 second, find the rate of deceleration:
Answer» A body accelerates from rest at a constant rate and then decelerates at a constant rate to come to the rest. The ratio of times of acceleration to deceleration is 1/3.It achieves a maximum velocity of 3 m/s. If total time elapsed is $4 \sqrt{3}$ second, find the rate of deceleration:

Discussion

10.	(1)- A person walks along the sides of a square field. Each side is 100 m long. What is the maximum magnitude of displacement of the person in any time interval (2)- A car moves 100 m due east and then 25 m due west. (a) What is the distance covered by the car? (b) what is its displacement?
Answer» (1)- A person walks along the sides of a square field. Each side is 100 m long. What is the maximum magnitude of displacement of the person in any time interval (2)- A car moves 100 m due east and then 25 m due west. (a) What is the distance covered by the car? (b) what is its displacement?

10.

(1)- A person walks along the sides of a square field. Each side is 100 m long. What is the maximum magnitude of displacement of the person in any time interval (2)- A car moves 100 m due east and then 25 m due west. (a) What is the distance covered by the car? (b) what is its displacement?

Answer»

(1)- A person walks along the sides of a square field.

Each side is 100 m long. What is the maximum magnitude of displacement of the person in any time interval

(2)- A car moves 100 m due east and then 25 m due west.

(a) What is the distance covered by the car? (b) what is its displacement?

Discussion

11.	The speed of sound in air at 0o C is nearly : (a) 1450 m s−1 (b) 450 m s−1 (c) 5100 m s−1 (d) 330 m s−1
Answer» The speed of sound in air at $0^{o} C$ is nearly : (a) 1450 m $s^{- 1}$ (b) 450 m $s^{- 1}$ (c) 5100 m $s^{- 1}$ (d) 330 m $s^{- 1}$

11.

The speed of sound in air at 0o C is nearly : (a) 1450 m s−1 (b) 450 m s−1 (c) 5100 m s−1 (d) 330 m s−1

Answer»

The speed of sound in air at $0^{o} C$ is nearly :

(a) 1450 m $s^{- 1}$

(b) 450 m $s^{- 1}$

(c) 5100 m $s^{- 1}$

(d) 330 m $s^{- 1}$

Discussion

12.	State the speed of (i) light and (ii) sound in air?
Answer» State the speed of (i) light and (ii) sound in air?

Discussion

13.	Michael Jordan has a vertical leap of 1.25 m, what is his takeoff speed and for how much time he will be in the air? Take g=10 ms−2.
Answer» Michael Jordan has a vertical leap of 1.25 m, what is his takeoff speed and for how much time he will be in the air? Take $g = 10 m s^{- 2}$ .

Discussion

14.	Which of the following statements is not true, regarding the electrical set-up for verification of Ohm's law?
Answer» Which of the following statements is not true, regarding the electrical set-up for verification of Ohm's law?

Discussion

15.	If 92X238 undergoes successively 8 α - decays and 6 β - decays, then resulting nucleus is
Answer» If $_{92} X^{238}$ undergoes successively 8 $α$ - decays and 6 $β$ - decays, then resulting nucleus is

Discussion

16.	A ball thrown vertically upwards with a speed of 20m/s from the top of a tower reaches a certain height and then falls back to the earth in 6 s. Find the height of the tower. [Take acceleration due to gravity, g=10 m/s2]
Answer» A ball thrown vertically upwards with a speed of $20 m / s$ from the top of a tower reaches a certain height and then falls back to the earth in $6 s .$ Find the height of the tower. [Take acceleration due to gravity, $g = 10 m / s^{2}$ ]

Discussion

17.	How does the kinetic energy of a moving body depend on its (i) speed, and (ii) mass?
Answer» How does the kinetic energy of a moving body depend on its (i) speed, and (ii) mass?

Discussion

18.	Why bats have eyes? They locate the things by the process of echolocation.
Answer» Why bats have eyes? They locate the things by the process of echolocation.

Discussion

19.	A seconds' pendulum is taken to a place where acceleration due to gravity falls to one-fourth. How is the time period of the pendulum affected, if at all ? Give reason. What will be its new time period ?
Answer» A seconds' pendulum is taken to a place where acceleration due to gravity falls to one-fourth. How is the time period of the pendulum affected, if at all ? Give reason. What will be its new time period ?

Discussion

20.	2) 6 pipes are required to fill a tank in 1hour 20 min . How long will it take if only 5 pipes of the same type are used ?
Answer» 2) 6 pipes are required to fill a tank in 1hour 20 min . How long will it take if only 5 pipes of the same type are used ?

Discussion

21.	Why do sea divers need special protective suit ?
Answer» Why do sea divers need special protective suit ?

Discussion

22.	Ray of light falling parallel to the principal axis follows which path after reflection?
Answer» Ray of light falling parallel to the principal axis follows which path after reflection?

22.

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

Answer»

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

Discussion

23.	Define the physical concept of the work with some examples. [2 MARKS]
Answer» Define the physical concept of the work with some examples. [2 MARKS]

Discussion

24.	Calculate the mechanical advantage of a screw whose radius is 9mm and pitch of 3mm.
Answer» Calculate the mechanical advantage of a screw whose radius is 9mm and pitch of 3mm.

Discussion

25.	Rocket can move in air free space but a jet plane cannot.why?
Answer» Rocket can move in air free space but a jet plane cannot.why?

Discussion

26.	Find out the effective length of a simple pendulum suspended at a place of g=9.8 m s−2, with a time period of 1 min.
Answer» Find out the effective length of a simple pendulum suspended at a place of $g = 9.8 {m s}^{- 2}$ , with a time period of $1 min$ .

Discussion

27.	Does the weight scale actually measure the weight or the mass ?
Answer» Does the weight scale actually measure the weight or the mass ?

Discussion

28.	Explain why a feilder on a cricket field covers his hand while catching a cricket ball.
Answer» Explain why a feilder on a cricket field covers his hand while catching a cricket ball.

Discussion

29.	Marine Survey ship sends a sound wave straight to the seabed it detects an echo 4 seconds later what is the approximate depth of the sea
Answer» Marine Survey ship sends a sound wave straight to the seabed it detects an echo 4 seconds later what is the approximate depth of the sea

Discussion

30.	Why does the multiple reflection of sound amplify it?
Answer» Why does the multiple reflection of sound amplify it?

Discussion

31.	how to get the center of mass of an irregular shaped object?
Answer» how to get the center of mass of an irregular shaped object?

Discussion

32.	Which would require a greater force accelerating at 2 kg mass at 5 metre per second or a 4 kg mass at 2 metre per second ?
Answer» Which would require a greater force accelerating at 2 kg mass at 5 metre per second or a 4 kg mass at 2 metre per second ?

Discussion

33.	Inter-connected food chains are called __ (Food pyramids/Food webs).
Answer» Inter-connected food chains are called __ (Food pyramids/Food webs).

Discussion

34.	If the density of water is 1gm/cm cube,then find the density in kg/m square.
Answer» If the density of water is 1gm/cm cube,then find the density in kg/m square.

Discussion

35.	Find the relation between the pressure exerted by the gases A, B and C in the open manometers as shown in the given figure.
Answer» Find the relation between the pressure exerted by the gases A, B and C in the open manometers as shown in the given figure.

35.

Find the relation between the pressure exerted by the gases A, B and C in the open manometers as shown in the given figure.

Answer»

Find the relation between the pressure exerted by the gases A, B and C in the open manometers as shown in the given figure.

Discussion

36.	Question First equation of motion - what is 'v' Second equation of motion - what is 's' Third equation of motion - what is 's'
Answer» Question First equation of motion - what is 'v' Second equation of motion - what is 's' Third equation of motion - what is 's'

36.

Question First equation of motion - what is 'v' Second equation of motion - what is 's' Third equation of motion - what is 's'

Answer»

Question

First equation of motion - what is 'v'

Second equation of motion - what is 's'

Third equation of motion - what is 's'

Discussion

37.	The ratio of density of a substance to density of water at 4°C is usually referred as:
Answer» The ratio of density of a substance to density of water at 4°C is usually referred as:

Discussion

38.	Quantitative expression of force is given by:
Answer» Quantitative expression of force is given by:

Discussion

39.	Sound travels at the fastest speed in which of the following mediums?
Answer» Sound travels at the fastest speed in which of the following mediums?

Discussion

40.	Define kinetic energy. Calculate the work required to be done to stop a car of 1500 kg moving at a velocity of 60 kmph? [3 MARKS]
Answer» Define kinetic energy. Calculate the work required to be done to stop a car of 1500 kg moving at a velocity of 60 kmph? [3 MARKS]

Discussion

41.	What is the initial velocity of an object during a free fall?
Answer» What is the initial velocity of an object during a free fall?

Discussion

42.	What is known as magnitude
Answer» What is known as magnitude

Discussion

43.	The magnetism acquired by a magnetic material when it is kept near (or in contact with) a magnet, is called ____________________.
Answer» The magnetism acquired by a magnetic material when it is kept near (or in contact with) a magnet, is called ____________________.

43.

The magnetism acquired by a magnetic material when it is kept near (or in contact with) a magnet, is called ____________________.

Answer»

The magnetism acquired by a magnetic material when it is kept near (or in contact with) a magnet, is called ____________________.

Discussion

44.	Use the following information to answer the next question. Two iron balls are charged with a similar type of charge. The nature and the amount of the charge possessed by each ball are shown in the given figure. If the balls are kept in contact with each other, then what will be the possible distribution of charges between the balls?
Answer» Use the following information to answer the next question. Two iron balls are charged with a similar type of charge. The nature and the amount of the charge possessed by each ball are shown in the given figure. If the balls are kept in contact with each other, then what will be the possible distribution of charges between the balls?

44.

Use the following information to answer the next question. Two iron balls are charged with a similar type of charge. The nature and the amount of the charge possessed by each ball are shown in the given figure. If the balls are kept in contact with each other, then what will be the possible distribution of charges between the balls?

Answer»

Use the following information to answer the next question.

Two iron balls are charged with a similar type of charge. The nature and the amount of the charge possessed by each ball are shown in the given figure.

If the balls are kept in contact with each other, then what will be the possible distribution of charges between the balls?

Discussion

45.	Use the following information to answer the next question. A motorcycle is accelerated from rest in such a way that it covers a distance of three kilometres in five minutes. The mass of the motorcycle is 260 kg. What is the force applied by the engine of the motorcycle?
Answer» Use the following information to answer the next question. A motorcycle is accelerated from rest in such a way that it covers a distance of three kilometres in five minutes. The mass of the motorcycle is 260 kg. What is the force applied by the engine of the motorcycle?

45.

Use the following information to answer the next question. A motorcycle is accelerated from rest in such a way that it covers a distance of three kilometres in five minutes. The mass of the motorcycle is 260 kg. What is the force applied by the engine of the motorcycle?

Answer»

Use the following information to answer the next question.

A motorcycle is accelerated from rest in such a way that it covers a distance of three kilometres in five minutes. The mass of the motorcycle is 260 kg.

What is the force applied by the engine of the motorcycle?

Discussion

46.	Question 26 1μ m is (a) 10–6 m (b) 10–9 m (c) 10–10 m (d) 10–3 m
Answer» Question 26 $1 μ m$ is (a) $10^{- 6} m$ (b) $10^{- 9} m$ (c) $10^{- 10} m$ (d) $10^{- 3} m$

Discussion

47.	Define density and relative density? __
Answer» Define density and relative density? __

Discussion

48.	Explain how motion is relative term.
Answer» Explain how motion is relative term.

Discussion

49.	What is despersive medium is all medium are despersive medium give some examples of dispersive medium
Answer» What is despersive medium is all medium are despersive medium give some examples of dispersive medium

Discussion

50.	An equal force of 100 N is applied upon two similar sharp nails at different angles as shown in figure ⇒ What will be the ratio of pressures at the tip of the nail in figure(I) and figure(II)?
Answer» An equal force of 100 N is applied upon two similar sharp nails at different angles as shown in figure ⇒ What will be the ratio of pressures at the tip of the nail in figure(I) and figure(II)?

50.

An equal force of 100 N is applied upon two similar sharp nails at different angles as shown in figure ⇒ What will be the ratio of pressures at the tip of the nail in figure(I) and figure(II)?

Answer»

An equal force of 100 N is applied upon two similar sharp nails at different angles as shown in figure ⇒

What will be the ratio of pressures at the tip of the nail in figure(I) and figure(II)?

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

(a) how will you find the loss in weight of a solid when it is fully immersed in water, with the weight of water displaced by it?

In the equations..... F1=G*Me*m/R2 and.... F2=m*a Why are the both forces (F1 and F2) are equal?

A particle is moving in a circle of diameter 20m. What is its distance and as per the table given below

Write the common unit of density.

An electric bulb of 40watt is used 50 days at 5 hrs perday find the unit of energy consumed by bulband cost of using electricity at the rate of 10 rupees per unit

Speed of a body in uniform circular motion for radius, R and time period, T is given by:

Explain the difference between potential energy and kinectic energy. Explain both in 4 points

The mass of sun 2×1030 kg and mass of earth is 6×1024 kg . If the distance between is 1.5 × 108 km . Calculate the force of gravitation between. (G = 6.7 × 10-11)

A body accelerates from rest at a constant rate and then decelerates at a constant rate to come to the rest. The ratio of times of acceleration to deceleration is 1/3.It achieves a maximum velocity of 3 m/s. If total time elapsed is 4√3 second, find the rate of deceleration:

(1)- A person walks along the sides of a square field. Each side is 100 m long. What is the maximum magnitude of displacement of the person in any time interval (2)- A car moves 100 m due east and then 25 m due west. (a) What is the distance covered by the car? (b) what is its displacement?

The speed of sound in air at 0o C is nearly : (a) 1450 m s−1 (b) 450 m s−1 (c) 5100 m s−1 (d) 330 m s−1

State the speed of (i) light and (ii) sound in air?

Michael Jordan has a vertical leap of 1.25 m, what is his takeoff speed and for how much time he will be in the air? Take g=10 ms−2.

Which of the following statements is not true, regarding the electrical set-up for verification of Ohm's law?

If 92X238 undergoes successively 8 α - decays and 6 β - decays, then resulting nucleus is

A ball thrown vertically upwards with a speed of 20m/s from the top of a tower reaches a certain height and then falls back to the earth in 6 s. Find the height of the tower. [Take acceleration due to gravity, g=10 m/s2]

How does the kinetic energy of a moving body depend on its (i) speed, and (ii) mass?

Why bats have eyes? They locate the things by the process of echolocation.

A seconds' pendulum is taken to a place where acceleration due to gravity falls to one-fourth. How is the time period of the pendulum affected, if at all ? Give reason. What will be its new time period ?

2) 6 pipes are required to fill a tank in 1hour 20 min . How long will it take if only 5 pipes of the same type are used ?

Why do sea divers need special protective suit ?

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

Define the physical concept of the work with some examples. [2 MARKS]

Calculate the mechanical advantage of a screw whose radius is 9mm and pitch of 3mm.

Rocket can move in air free space but a jet plane cannot.why?

Find out the effective length of a simple pendulum suspended at a place of g=9.8 m s−2, with a time period of 1 min.

Does the weight scale actually measure the weight or the mass ?

Explain why a feilder on a cricket field covers his hand while catching a cricket ball.

Marine Survey ship sends a sound wave straight to the seabed it detects an echo 4 seconds later what is the approximate depth of the sea

Why does the multiple reflection of sound amplify it?

how to get the center of mass of an irregular shaped object?

Which would require a greater force accelerating at 2 kg mass at 5 metre per second or a 4 kg mass at 2 metre per second ?

Inter-connected food chains are called __ (Food pyramids/Food webs).

If the density of water is 1gm/cm cube,then find the density in kg/m square.

Find the relation between the pressure exerted by the gases A, B and C in the open manometers as shown in the given figure.

Question First equation of motion - what is 'v' Second equation of motion - what is 's' Third equation of motion - what is 's'

The ratio of density of a substance to density of water at 4°C is usually referred as:

Quantitative expression of force is given by:

Sound travels at the fastest speed in which of the following mediums?

Define kinetic energy. Calculate the work required to be done to stop a car of 1500 kg moving at a velocity of 60 kmph? [3 MARKS]

What is the initial velocity of an object during a free fall?

What is known as magnitude

The magnetism acquired by a magnetic material when it is kept near (or in contact with) a magnet, is called ____________________.

Use the following information to answer the next question. A motorcycle is accelerated from rest in such a way that it covers a distance of three kilometres in five minutes. The mass of the motorcycle is 260 kg. What is the force applied by the engine of the motorcycle?

Question 26 1μ m is (a) 10–6 m (b) 10–9 m (c) 10–10 m (d) 10–3 m

Define density and relative density? __

Explain how motion is relative term.

What is despersive medium is all medium are despersive medium give some examples of dispersive medium

An equal force of 100 N is applied upon two similar sharp nails at different angles as shown in figure ⇒ What will be the ratio of pressures at the tip of the nail in figure(I) and figure(II)?

In the equations..... F1=GMem/R2 and.... F2=m*a Why are the both forces (F1 and F2) are equal?