Question # 1

A particle moving uniformly along circle its projection along diameter performs

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Linear motion

Projectile motion

SHM

Rotatory motion

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

Which one of the following is an example of SHM:

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Motion in a plane

Motion in a swing

Motion in a car

None of these

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 a mass of 10 gm is suspended from a spring of k = 9.8 Nm^-1, then the extension will be:

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1 cm

1 m

10 mm

None of these

Hertz is unit of:

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Time period

Displacement

Amplitude

Frequency

A body with frequency of would complete one vibration in:

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f seconds

1/f seconds

1 second

f²second

If a force of 0.05 N produces an elongation of 20 mm in a string, then its spring constant will be:

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250 N m^-1

25 N m^-1

2.5 N m^-1

None of these

The acceleration of body executing SHM is directly proportional to

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Applied force

Amplitude

Displacement

Frictional force

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

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Infinity

Maximum

Zero

Minimum

The SI unit of spring constant is identical with that of:

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Force

Surface tension

Pressure

Loudness

In vibrational motion(SHM)

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P.E remains conserved

Average K.E remain constant

Neither P.E nor K.E remains constant

Total energy remains constant

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

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Velocity

Period

Mass

Acceleration

If a given spring of spring constant k is cut into two indentical segments, the spring constant of each segment is:

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k/2

2 k

4 k

None of these

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 unit of spring constant is

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J-sec

Metre

Nm^-1

None of these

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