Question # 1

In SHM, there is always a constant ratio between displacement if body and its:

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Velocity

Period

Mass

Acceleration

The body oscillates due to _____ accelerates and overshoots the rest position due to______,:

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Applied force, inertial

Restoring force, friction

Frictional force, inertial

Restoring force, inertial

An object in SHM will have maximum speed when its displacement from equilibrium position is:

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Infinity

Maximum

Zero

Minimum

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

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90°

180°

45°

360°

The restoring force is always directed towards:

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Rest position

Equilibrium position

Mean position

All of them

The wave form of SHM is

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Pulsed wave

Square wave

Triangular waved

Sine wave

An angle of 180° in circular motion is equivalent to ______ in SHM.

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Half the vibration

One vibration

3/4th of a vibration

None of these

If the waves produced in a microwave oven are of wave-length 12 cm, then their frequency will be:

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2500 MHz

0.25 MHz

2500 KHz

None of these

A body with frequency would complete one vibration in:

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f seconds

1/f seconds

1 second

f²second

The unit of spring constant is

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J-sec

Metre

Nm^-1

None of these

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

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90°

180°

45°

360°

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

A spring of constant k = 0.4 N m^-1is to be extended through 10 cm at a place where g = 10 m sec^-2. The mass to be suspended should be:

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4 gms

0.4 gm

40 gms

None of these

The graph showing the variation of displacement with time is a:

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Sine curve

Straight line

Parabola

None of these

The maximum distance of body from mean position when body is executing SHM is called

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Time period

Displacement

Amplitude

Frequency

When a mass attached to a spring begins to move left or right from the equilibrium position, its P.E.:

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Increases

Decreases

Remains constant

None of these

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