Question # 1

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

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1 second

2 second

3 second

None of these

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

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

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Force

Surface tension

Pressure

Loudness

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 given spring of spring constant K is cut into two identical segments, the spring constant of each segment is:

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K/2

2 K

4 K

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

Vibratory motion is always under

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Applied force

Restoring force

Periodic force

Gravitational force

Velocity of particle executing SHM will be maximum at

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Extreme position

Mean position

b/w mean and extreme

None

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

The restoring force is always directed towards:

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Rest position

Equilibrium position

Mean position

All of them

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

The wave form of SHM is

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Pulsed wave

Square wave

Triangular waved

Sine wave

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

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

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