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

Free oscillations are always produced by:

Question # 2

The displacement of body executing SHM is

Question # 3

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

Question # 4

Which one of the following is an example of SHM

Question # 5

The unit of spring constant is

Question # 6

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

Question # 7

A particle moving uniformly along circle its projection along diameter performs

Question # 8

The S.I unit of frequency is

Question # 9

In vibrational motion(SHM)

Question # 10

The acceleration of body executing SHM is directly proportional to

Question # 11

In SHM, there is always a constant ratio between displacement if body and its:

Question # 12

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

Question # 13

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

Question # 14

Which of the following forces is responsible for SHM

Question # 15

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

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 A spring of constant k = 0.4 N m-1is to be extended thorugh 10 cm at a place where g = 10 m sec-2. The mass to be suspended should be:
A. 4 gms
B. 0.4 gms
C. 40 gms
D. None of these
2 An oscillating body oscillates due to:
A. Applied force
B. Restoring force
C. Frictional force
D. None of these
3 If a given spring of spring constant k is cut into two indentical segments, the spring constant of each segment is:
A. k/2
B. 2 k
C. 4 k
D. None of these
4 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
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 Velocity of particle executing SHM will be maximum at
A. Extreme position
B. Mean position
C. b/w mean and extreme
D. None
7 The string of a simple pendulum should be:
A. Heavy
B. Extensible
C. In-extensible
D. None of these
8 The unit of spring constant is:
A. J-sec
B. Metre
C. Nm-1
D. None of these
9 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
10 The restoring force is always directed towards:
A. Rest position
B. Equilibrium position
C. Mean position
D. All of them

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