ECAT Pre Computer Science Chapter 7 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 7 Oscillations

Try The MCQ's Test For ECAT Physics Chapter 7 Oscillations

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ECAT Physics Chapter 7 Oscillations

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Question # 1

When a body is vibrating, the displacement from mean position

Question # 2

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

Question # 3

The graph showing the variation of displacement with time is a:

Question # 4

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

Question # 5

If a mass of 10 gm is suspended from a spring of k = 9.8 Nm-1, then the extension will be:

Question # 6

An oscillating body oscillates due to:

Question # 7

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

Question # 8

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

Question # 9

Free oscillations are always produced by:

Question # 10

The unit of spring constant is

Question # 11

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

Question # 12

Which of the following is an example of SHM(in ideal situations)

Question # 13

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

Question # 14

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

Question # 15

The restoring force is ______ amd opposite to the applied force within _____:

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 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
2 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
3 The graph showing the variation of displacement with time is a
A. Sine curve
B. Straight line
C. Parabola
D. None of these
4 A particle moving uniformly along circle its projection along diameter performs
A. Linear motion
B. Projectile motion
C. SHM
D. Rotatory motion
5 The S.I unit of frequency is
A. Vibrations s-2
B. Ms-1
C. Hertz
D. s-1
6 Vibratory motion is always under
A. Applied force
B. Restoring force
C. Periodic force
D. Gravitational force
7 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
8 A body with frequency of would complete one vibration in:
A. f seconds
B. 1/f seconds
C. 1 second
D. f2second
9 If a force of 0.05 N produces an elongation of 20 mm in a string, then its spring constant will be:
A. 250 N m-1
B. 25 N m-1
C. 2.5 N m-1
D. None of these
10 Second's pendulum is the pendulum whose time period is:
A. 1 second
B. 2 second
C. 3 second
D. None of these

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