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 graph showing the variation of displacement with time is a:

Question # 2

When a body is vibrating, the displacement from mean position:

Question # 3

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

Question # 4

The S.I unit of frequency is

Question # 5

Velocity of particle executing SHM will be maximum at

Question # 6

A particle moving uniformly along circle its projection along diameter performs

Question # 7

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

Question # 8

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

Question # 9

An oscillating body oscillates due to:

Question # 10

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

Question # 11

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

Question # 12

A body with frequency of would complete one vibration in:

Question # 13

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

Question # 14

The string of a simple pendulum should be:

Question # 15

Amplitude in SHM is equivalent to ______ in circular motion

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 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
2 The displacement of body executing SHM is
A. xocoswt
B. xosinwt
C. xosin2wt
D. Both A, B
3 The number of vibration in two seconds can be expressed as
______ of frequency of vibration is f:
A. f
B. 2 f
C. 3 f
D. 1/2 f
4 The maximum distance of body from mean position when body is executing SHM is called
A. Time period
B. Displacement
C. Amplitude
D. Frequency
5 If a given spring of spring constant K is cut into two identical segments, the spring constant of each segment is:
A. K/2
B. 2 K
C. 4 K
D. None of these
6 If there identical strings each of constant K are hooked together the spring constant of resultant spring will be:
A. 3 K
B. 2 K
C. K/4
D. K/3
7 A particle moving uniformly along circle its projection along diameter performs
A. Linear motion
B. Projectile motion
C. SHM
D. Rotatory motion
8 Amplitude in SHM is equivalent to ______ in circular motion:
A. Diameter
B. Radius
C. Circumference
D. None of these
9 The unit of spring constant is
A. J-sec
B. Metre
C. Nm-1
D. None of these
10 A body with frequency would complete one vibration in:
A. f seconds
B. 1/f seconds
C. 1 second
D. f2second

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