Question # 1

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 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

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

Which of the following quantity for particle executing SHM is non-zero at mean position

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Force

Acceleration

Velocity

Displacement

The string of a simple pendulum should be:

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Heavy

Extensible

In-extensible

None of these

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

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90°

180°

45°

360°

An oscillating body oscillates due to:

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Applied force

Restoring force

Frictional force

None of these

The unit of spring constant is:

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J-sec

Metre

Nm^-1

None of these

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

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

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Infinity

Maximum

Zero

Minimum

The time taken to complete one vibration is called:

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Frequency

Amplitude

Time

Time period

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

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90°

180°

45°

360°

If time period of a pendulum is doubled by increasing its length, then its frequency will

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Also be doubled

Become half

Become one fourth

Becomes four times

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

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90°

180°

45°

360°

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

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