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

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:

Question # 2

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

Question # 3

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

Question # 4

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

Question # 5

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

Question # 6

Amplitude in SHM is equivalent to ______ in circular motion

Question # 7

A body with frequency of would complete one vibration in:

Question # 8

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

Question # 9

The maximum distance of body from mean position when body is executing SHM is called

Question # 10

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

Question # 11

The graph showing the variation of displacement with time is a

Question # 12

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

Question # 13

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

Question # 14

A particle executes SHM with frequency. The frequency with which its K.E oscillates is

Question # 15

A particle is moving along a circular path with uniform speed. Its projection will execute ___along the _____ of the circle:

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 An oscillating body oscillates due to:
A. Applied force
B. Restoring force
C. Frictional force
D. None of these
2 Amplitude in SHM is equivalent to ______ in circular motion
A. Diameter
B. Radius
C. Circumference
D. None of these
3 Velocity of particle executing SHM will be maximum at
A. Extreme position
B. Mean position
C. b/w mean and extreme
D. None
4 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:
A. 1.5 sec
B. 2.0 sec
C. 2.3 sec
D. 2.5 sec
5 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
6 The displacement of body executing SHM is
A. xocoswt
B. xosinwt
C. xosin2wt
D. Both A, B
7 The wave form of SHM is
A. Pulsed wave
B. Square wave
C. Triangular waved
D. Sine wave
8 The SI unit of spring constant is identical with that of:
A. Force
B. Surface tension
C. Pressure
D. Loudness
9 Vibratory motion is always under
A. Applied force
B. Restoring force
C. Periodic force
D. Gravitational force
10 If a mass of 10 gm is suspended from a spring of k = 9.8 Nm-1, then the extension will be:
A. 1 cm
B. 1 m
C. 10 mm
D. None of these

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