Question # 1

The product of time period and frequency is.

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Zero

1

2

3

The frequency of waves produced in microwave oven is

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1435 Hz

2450 MHz

1860 MHz

2850 Hz

The acceleration produced by elastic restoring force is

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Perpendicular to force

Opposite to force

In same direction as force

Zero

A spring has a spring constant k. If it is cut in two equal parts, the spring constant of each part will be

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K

2 K

K/2

4K

In simple harmonic motion the velocity of a particle is maximum at.

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Extreme position

Mean position

In between extreme and mean position

None of them

The amplitude of a vibrating body at resonance in vacuum is

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Minimum

Maximum

Zero

Infinite

If the time period of simple pendulum is 2 seconds its frequency will be.

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1 Hz

0.5 Hz

1.5 Hz

2 Hz

The produce oscillation, body is pulled away from its

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Mean position

Extreme position

Both a and b

None of these

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

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Time period

Amplitude

Phase

Frequency

The velocity of a particle having SHM is 'v' at means position. If its amplitude is doubled them velocity at mean position will be

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v/2

v

2v

4 v

One complete round trip of a vibrating body is called.

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Frequency

Time period

Vibration

Amplitude

P.E. of a spring is stored in

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Spring

mass

Both of them

None of these

Turning of radio is example of.

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Mechanical resonance

Electrical resonance

Physical resonance

Biological resonance

If amplitude of a simple pendulum is increased by 4 times the time period will be.

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Four times

Half

Same

Two times

Oscillation of shock absorber of a car is practical example of.

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simple harmonic motion

Forced oscillation

Damped oscillation

Undamped oscillation

The wave form of SHM is.

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Sine wave

Cosine wave

Tangent wave

Square wave

the distance covered during one vibration of an oscillating body in terms of amplitude 'A' is

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A/2

A

2A

4A

The wavelength of wave produced by microwave oven is.

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12 cm

12 m

18 m

18 cm

Damping is the process in which energy

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Increases

Remains constant

Dissipates

None of these

The mathematical expression for the restoring force is.

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F = kx

F = ma

F = dp/dt

F = -kx

Frequency 'f' and time period 'T' are related as

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A swing is good example of

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Resonance

Vibration

Time period

Oscillation

Angular frequency is the characteristic of

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Linear motion

Vibratory motion

Circular motion

All of these

Time period of simple pendulum depends upon

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Mass of pendulum

Weight of pendulum

Length of pendulum

Shape of pendulum

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