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Viva questions for Physics Class 12
विज्ञान 10 – महत्वपूर्ण MCQs
Fundamentals of Arithmetic
Science 10 – Important MCQs

Work, Energy and Power – L1

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Question 1 of 10

1. Question

Work done by a force in bringing an object over a displacement depends on

mass, force and displacement

force and displacement

force and mass

mass and displacement

Correct

Incorrect
Question 2 of 10

2. Question

Work done by a force in bringing an object over a displacement is

vector product of force and displacement it causes to the body

dot product of force and distance it causes to the body

dot product of force and displacement it causes to the body

normal product of force and displacement it causes to the body

Correct

Incorrect
Question 3 of 10

3. Question

The work done during a uniform circular motion of a body is zero because

there is no force acting on the body

there is no displacement in the body

there is neither a force not a displacement in the body

the angle between the force and the displacement is 90 degrees

Correct

Incorrect
Question 4 of 10

4. Question

Which is true about mechanical energy?

only kinetic energy is known as mechanical energy

only potential energy is known as mechanical energy

work done is mechanical energy

kinetic energy as well potential energy both are mechanical energy

Correct

Incorrect
Question 5 of 10

5. Question

Watt is unit of

power

work

pressure

energy

Correct

Incorrect
Question 6 of 10

6. Question

Two lumps of wet soil collide with each other. As a result of the collision, the two soil masses start moving together. This type of collision is

inelastic collision

completely inelastic collision

elastic collision

partially elastic collision

Correct

Incorrect
Question 7 of 10

7. Question

A body of mass 15 Kg is placed at a height of 10 m from the earth’s surface. Find the potential energy stored in it.

147 J

1470 Kj

1470 J

147 Kj

Correct

Incorrect
Question 8 of 10

8. Question

Which of the following is not a vector quantity?

work

energy

power

no one is a vector quantity

Correct

Incorrect
Question 9 of 10

9. Question

Correct dimensional formula for Power is

\([M^0L^{-1}T^{-2}]\)

\([M^0L^{2}T^{-2}]\)

\([M^1L^{2}T^{-3}]\)

\([M^0L^{-2}T^{-1}]\)

Correct

Incorrect
Question 10 of 10

10. Question

Correct dimensional formula for spring constant is

\([M^0L^{2}T^{-2}]\)

\([M^1L^{0}T^{-2}]\)

\([M^0L^{-1}T^{-2}]\)

\([M^{-1}L^{-2}T^{-1}]\)

Correct

Incorrect

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"Stronger the roots, Brighter the future"

Points Table
Viva questions for Physics Class 12
विज्ञान 10 – महत्वपूर्ण MCQs
Fundamentals of Arithmetic
Science 10 – Important MCQs

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