Question # 1

Amplitude in SHM is equivalent to ______ in circular motion

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Diameter

Radius

Circumference

None of these

A body with frequency would complete one vibration in:

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f seconds

1/f seconds

1 second

f²second

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

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

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1 second

2 second

3 second

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

A spring of constant k = 0.4 N m^-1_{is to be extended thorugh 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 gms

40 gms

None of these

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

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

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

The string of a simple pendulum should be:

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Heavy

Extensible

In-extensible

None of these

Which of the following forces is responsible for SHM

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Applied force

Restoring force

Fractional force

Elastic force

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

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

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

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Zero, smallest

Smallest, zero

Zero, zero

Zero, greatest

Amplitude in SHM is equivalent to ______ in circular motion:

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Diameter

Radius

Circumference

None of these

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

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ECAT Physics Chapter 7 Oscillations Online Test MCQs With Answers

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