ECAT Pre Computer Science Chapter 7 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 7 Oscillations

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ECAT Physics Chapter 7 Oscillations

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Question # 1

The SI unit of spring constant is identical with that of

Question # 2

The graph showing the variation of displacement with time is a

Question # 3

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

Question # 4

Hertz is unit of:

Question # 5

An angle of 180° in circular motion is equivalent to ______ in SHM.

Question # 6

The number of vibration in two seconds can be expressed as
______ of frequency of vibration is f:

Question # 7

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

Question # 8

A body with frequency of would complete one vibration in:

Question # 9

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

Question # 10

Which one of the following is an example of SHM:

Question # 11

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

Question # 12

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

Question # 13

Acceleration of body executing SHM is always directed towards

Question # 14

Distance covered during one vibration of an oscillating body in terms of amplitude A is:

Question # 15

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

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 The restoring force is _____ and 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
2 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
3 The SI unit of spring constant is identical with that of
A. Force
B. Surface tension
C. Pressure
D. Loudness
4 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. Vibrator, chord
C. SHM, diameter
D. SHM, circumference
5 Second's pendulum is the pendulum whose time period is:
A. 1 second
B. 2 second
C. 3 second
D. None of these
6 When a body is vibrating, the displacement from mean position
A. Increases with time
B. Decreases with time
C. Changes with time
D. None of these
7 Amplitude is the displacement of the vibrating body from:
A. One extreme position to the other extreme position
B. Mean position any one extreme position
C. Both A and B are correct
D. None of these
8 The restoring force is always directed towards:
A. Rest position
B. Equilibrium position
C. Mean position
D. All of them
9 If mass of 10 gm is suspended from a spring of K=0.8 Nm-1then the extension will be:
A. 10 cm
B. 1 m
C. 10 mn
D. None of these
10 In SHM, there is always a constant ratio between displacement if body and its:
A. Velocity
B. Period
C. Mass
D. Acceleration

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