Question # 1

The number of vibrations in two seconds can be expressed as______if frequency of vibration is f.

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f

2 f

3 f

1/2 f

The string of a simple pendulum should be:

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Heavy

Extensible

In-extensible

None of these

A particle is moving along a circular path with uniform speed. Its projection will execute____along the____of the circle:

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Circular motion, circumference

Vibrator, chord

SHM, diameter

SHM, circumference

The displacement of body executing SHM is

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x_ocoswt

x_osinwt

x_osin²wt

Both A, B

When quarter of a circle is completed, the phase of vibration is:

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90°

180°

45°

360°

When quarter of a cycle is completed, the phase of vibration is:

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90°

180°

45°

360°

Second's pendulum is the pendulum whose time period is:

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1 second

2 second

3 second

None of these

When a body is vibrating, the displacement from mean position:

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Increases with time

Decreases with time

Changes with time

None of these

A particle is moving along a circular path with uniform speed. Its projection will execute ___along the _____ of the circle:

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Circular motion, circumference

Vibratory, chord

SHM, diameter

SHM, circumference

The unit of spring constant is

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J-sec

Metre

Nm^-1

None of these

The body oscillates due to ______ accelerates and overshoots the rest position due to _______

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Applied force, Inertia

Restoring force, Friction

Frictional force, Inertia

Restoring force, Inertia

Vibratory motion is always under

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Applied force

Restoring force

Periodic force

Gravitational force

The restoring force is always directed towards:

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Rest position

Equilibrium position

Mean position

All of them

The restoring force is ______ amd opposite to the applied force within _____:

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Equal, elastic limit

Different, the walls of the laboratory

Different, elastic limit

None of these

An oscillating body oscillates due to:

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Applied force

Restoring force

Frictional force

None of these

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