MHT-CET SERIES

Physics

Work Energy And Power

25 previous year questions.

Volume: 25 Ques

Yield: High

High-Yield Trend

1

2026

11

2025

3

2022

6

2020

2

2018

1

2014

1

2006

Chapter Questions
25 MCQs

01

PYQ 2006

medium

physics ID: mht-cet-

An engineer claims to have made an engine delivering 10 kW power with fuel consumption of . The calorific value of fuel is 2 . This claim is

1

valid

2

invalid

3

dependent on engine design

4

dependent on load

02

PYQ 2014

medium

physics ID: mht-cet-

In a thermodynamic system, represents the increase in internal energy and the work done by the system. Then correct statement is

1

is an isothermal process

2

is an adiabatic process

3

is an isothermal process

4

is an adiabatic process

03

PYQ 2018

medium

physics ID: mht-cet-

A mass attached to one end of a string crosses top-most point on a vertical circle with critical speed. Its centripetal acceleration when string becomes horizontal will be (g = gravitational acceleration)

1

2

3

4

04

PYQ 2018

easy

physics ID: mht-cet-

A sphere of mass 'm' moving with velocity 'v' collides head-on on another sphere of same mass which is at rest. The ratio of final velocity of second sphere to the initial velocity of the first sphere is (e is coefficient of restitution and collision is inelastic)

05

PYQ 2020

medium

physics ID: mht-cet-

A block of mass, kept on a horizontal surface, is moved through a distance by applying a horizontal force to it. What is the work done by the normal reaction?

1

2

3

zero

4

06

PYQ 2020

easy

physics ID: mht-cet-

A ball falls in the downward direction from a height with initial velocity . It collides with the ground, loses th of energy and comes back to the same height. The initial velocity is (g = acceleration due to gravity)

1

2

3

4

07

PYQ 2020

medium

physics ID: mht-cet-

An alternating e.m.f. of 0.2 V is applied across an LCR series circuit having,, and . At resonance, the voltage drop across the inductor is

1

1 V

2

2.5 V

3

5 V

4

10 V

08

PYQ 2020

medium

physics ID: mht-cet-

Two springs of spring constants and are stretched by the same force. If and are the energies stored in them respectively, then

1

2

3

4

09

PYQ 2020

medium

physics ID: mht-cet-

A force acts on a body of mass 2 kg and displaces it from to . The work done is

1

27 J

2

18 J

3

36 J

4

9 J

10

PYQ 2020

medium

physics ID: mht-cet-

The kinetic energy acquired by a body of mass in travelling a certain distance, starting from rest, under the action of constant force is

1

inversely proportional to

2

directly proportional to

3

independent of

4

directly proportional to

11

PYQ 2022

medium

physics ID: mht-cet-

The work done by a force on body of mass 5 kg to accelerate it in the direction of force from rest to 20 m/s 2 in 10 second is

1

2x10 3 J

2

4x10 3 J

3

10 -3 J

4

103 J

12

PYQ 2022

easy

physics ID: mht-cet-

A wall is hit elastically and normally by ‘n’ balls per second. All the balls have the same mass ‘m’ and are moving with the same velocity ‘u’. the force exerted by the balls on the wall is

1

2mnu

2

mnu 2

3

mnu

4

2mnu 2

13

PYQ 2022

easy

physics ID: mht-cet-

A 4 kg mass and a 1 kg mass are moving with equal energies. The ratio of the magnitude of their linear momenta is

1

1 : 2

2

2 : 1

3

1 : 1

4

4 : 1

14

PYQ 2025

medium

physics ID: mht-cet-

In n-type semiconductor, free electrons donated by the impurity atoms occupy energy levels in}

1

the conduction band.

2

the valence band.

3

the band gap and are close to the conduction band.

4

the band gap and are close to the valence band.

15

PYQ 2025

medium

physics ID: mht-cet-

‘P’ and ‘Q’ are fixed points in same plane and mass ‘m’ is tied by string as shown in figure. If the mass is displaced slightly out of this plane and released, it will oscillate with time period ()

1

2

3

4

16

PYQ 2025

medium

physics ID: mht-cet-

What is the kinetic energy of a body of mass moving with a velocity of ?

1

2

3

4

17

PYQ 2025

hard

physics ID: mht-cet-

A 0.5 kg object is moving with a velocity of 10 m/s. What is its kinetic energy?

1

2

3

4

18

PYQ 2025

easy

physics ID: mht-cet-

A 50 kg person climbs a staircase of height 10 m. Calculate the work done by the person against gravity.

1

2

3

4

19

PYQ 2025

medium

physics ID: mht-cet-

A body of mass 10 kg is moving with a speed of 4 m/s. It is brought to rest by a force in 5 seconds. Calculate the work done by the force.

1

40 J

2

60 J

3

80 J

4

100 J

20

PYQ 2025

easy

physics ID: mht-cet-

A force of 10 N is applied to move a body of mass 5 kg over a distance of 3 meters. Find the work done by the force.

1

20 J

2

30 J

3

40 J

4

50 J

21

PYQ 2025

easy

physics ID: mht-cet-

A body of mass is moving with a velocity of . What is the kinetic energy of the body?

1

2

3

4

22

PYQ 2025

medium

physics ID: mht-cet-

A 2 kg object is in a gravitational field where the acceleration due to gravity is . What is the gravitational potential energy of the object at a height of ?

1

2

3

4

23

PYQ 2025

easy

physics ID: mht-cet-

A block of mass 5 kg is pulled along a horizontal surface by a force of 20 N at an angle of 30° to the horizontal. If the coefficient of friction between the block and the surface is 0.2 and the acceleration due to gravity is, what is the work done by the applied force in moving the block 10 m?

1

2

3

4

24

PYQ 2025

hard

physics ID: mht-cet-

A 1.5 kg object is moving with a velocity of . What is its kinetic energy?

1

2

3

4

25

PYQ 2026

medium

physics ID: mht-cet-

What is the change in internal energy of a system if of heat is added and of work is done by the system?

1

2

3

4