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Physics English Medium Fsc Part 1 Chapter 7 Online MCQs Test MCQs With Answers

Question # 1

Second pendulum has a time period

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1 sec

3 sec

2 sec

4 sec

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Question # 2

The amplitude of a vibrating body at resonance in vacuum is

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Minimum

Maximum

Zero

Infinite

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Question # 3

The mathematical expression for the restoring force is.

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F = kx

F = ma

F = dp/dt

F = -kx

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Question # 4

The time period of an oscillating mass spring system is 10 second. If mass attached to spring id doubled then time period becomes.

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10 sec

20 sec

5 sec

None of these

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Question # 5

A phenomenon by which energy is dissipated from the oscillating system is called.

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Forced oscillation

Free oscillation

Damping

Simple harmonic motion

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Question # 6

The acceleration produced by elastic restoring force is

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Perpendicular to force

Opposite to force

In same direction as force

Zero

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Question # 7

A quantity which indicates the state and direction of a vibrating body is known as

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Time period

Amplitude

Phase

Frequency

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Question # 8

In S.H.M, the acceleration of the body is directly proportional to

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Weight of body

Applied force

Amplitude

Displacement

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Question # 9

Damping is the process in which energy

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Increases

Remains constant

Dissipates

None of these

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Question # 10

When a body is vibrating its displacement from mean position

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Remains constant

Changes with time

Become(-)ve

None of these

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Question # 11

The wave form of SHM is.

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Sine wave

Cosine wave

Tangent wave

Square wave

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