# 11th Class Physics MCQS Chapter 7

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When a body is vibrating its displacement from mean position
Become(-)ve
Changes with time
Remains constant
None of these

In S.H.M, the acceleration of the body is directly proportional to
Amplitude
Displacement
Weight of body
Applied force

Damping is the process in which energy
Dissipates
None of these
Remains constant
Increases

The acceleration produced by elastic restoring force is
Zero
Perpendicular to force
Opposite to force
In same direction as force

Second pendulum has a time period
4 sec
2 sec
1 sec
3 sec

The frequency of 2nd pendulum is
1.5 Hz
2 Hz
0.5 Hz
1 Hz

A swing is good example of
Vibration
Oscillation
Time period
Resonance

The amplitude of a vibrating body at resonance in vacuum is
Maximum
Zero
Minimum
Infinite

One complete round trip of a body is called
Vibration
Frequency
Time period
Displacement

Time period of simple pendulum depends upon
Weight of pendulum
Shape of pendulum
Length of pendulum
Mass of pendulum

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