ECAT Pre General Science Physics Chapter 7 MCQ Test With Answer

MCQ's Test For ECAT Pre General Science Physics Chapter 7 Oscillations

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ECAT Pre General Science Physics Chapter 7 Oscillations

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Question # 1

The S.I unit of frequency is

Question # 2

When a body is vibrating, the displacement from mean position

Question # 3

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

Question # 4

Amplitude is the displacement of the vibrating body from:

Question # 5

When a mass attached to a spring begins to move left or right from the equilibrium position, its P.E.:

Question # 6

The restoring force is ______ and opposite tot he applied force within ______

Question # 7

Amplitude in SHM is equivalent to ______ in circular motion:

Question # 8

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

Question # 9

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

Question # 10

The body oscillates due to _____ accelerates and overshoots the rest position due to______,:

Question # 11

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

Question # 12

If the waves produced in a microwave oven are of wave-length 12 cm, then their frequency will be:

Question # 13

The body oscillates due to ______ accelerates and overshoots the rest position due to _______

Question # 14

The time period of a simple pendulum is independent of its:

Question # 15

An oscillating body oscillates due to:

Question # 16

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

Question # 17

The graph showing the variation of displacement with time is a

Question # 18

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

Question # 19

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

Question # 20

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

Question # 21

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

Question # 22

A body with frequency would complete one vibration in:

Question # 23

Amplitude in SHM is equivalent to ______ in circular motion

Question # 24

If mass of 10 gm is suspended from a spring of K=0.8 Nm-1then the extension will be:

Question # 25

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

Question # 26

The SI unit of spring constant is identical with that of

Question # 27

The number of vibrations in two seconds can be expressed as______if frequency of vibration is f.

Question # 28

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

Question # 29

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

Question # 30

SHM is type of ______ motion

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 The number of vibrations in two seconds can be expressed as______if frequency of vibration is f.
A. f
B. 2 f
C. 3 f
D. 1/2 f
2 A particle executes SHM with frequency. The frequency with which its K.E oscillates is
A. f/2
B. 2f
C. f
D. 4f
3 The SI unit of spring constant is identical with that of:
A. Force
B. Surface tension
C. Pressure
D. Loudness
4 The SI unit of spring constant is identical with that of
A. Force
B. Surface tension
C. Pressure
D. Loudness
5 The unit of spring constant is:
A. J-sec
B. Metre
C. Nm-1
D. None of these
6 When a mass attached to a spring begins to move left or right from the equilibrium position, its P.E.:
A. Increases
B. Decreases
C. Remains constant
D. None of these
7 An angle of 180° in circular motion is equivalent to ______ in SHM.
A. Half the vibration
B. One vibration
C. 3/4th of a vibration
D. None of these
8 A particle is moving along a circular path with uniform speed. Its projection will execute ___along the _____ of the circle:
A. Circular motion, circumference
B. Vibratory, chord
C. SHM, diameter
D. SHM, circumference
9 An oscillating body oscillates due to:
A. Applied force
B. Restoring force
C. Frictional force
D. None of these
10 The restoring force is ______ amd opposite to the applied force within _____:
A. Equal, elastic limit
B. Different, the walls of the laboratory
C. Different, elastic limit
D. None of these

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