Question # 1

A body with frequency of would complete one vibration in:

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f seconds

1/f seconds

1 second

f²second

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

If a force of 0.05 N produces an elongation of 20 mm in 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 S.I unit of frequency is

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Vibrations s^-2

Ms^-1

Hertz

s^-1

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

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

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90°

180°

45°

360°

Amplitude in SHM is equivalent to_____ in circular motion:

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Diameter

Radius

Circumference

None of these

If there identical strings each of constant K are hooked together the spring constant of resultant spring will be:

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3 K

2 K

K/4

K/3

In SHM, the acceleration is ______ when velocity is _____:

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Zero, smallest

Smallest, zero

Zero, zero

Zero, greatest

Velocity of particle executing SHM will be maximum at

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Extreme position

Mean position

b/w mean and extreme

None

The acceleration of body executing SHM is directly proportional to

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Applied force

Amplitude

Displacement

Frictional force

A body of mass 0.031 kg attached to one end of a spring of spring constant 0.3 N/m, then time period of spring mass system will be:

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1.5 sec

2.0 sec

2.3 sec

2.5 sec

To and from motion of a body about its mean position is known as:

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Translatory motion

Vibratory motion

Rotatory motion

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

To and fro motion of a body is about its mean position is known as:

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Translatory motion

Vibratory motion

Rotatory motion

None of these

A particle executes SHM with frequency. The frequency with which its K.E oscillates is

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f/2

2f

f

4f

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