ECAT Pre General Science Physics Chapter 7 MCQ Test With Answer

MCQ's Test For ECAT Pre General Science Physics Chapter 7 Oscillations

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

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ECAT Pre General Science Physics Chapter 7 Oscillations

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Question # 1

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

Question # 2

The time taken to complete one vibration is called:

Question # 3

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

Question # 4

The displacement of body executing SHM is

Question # 5

An object undergoes SHM. Its maximum equilibrium positions:

Question # 6

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

Question # 7

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

Question # 8

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 # 9

Acceleration of body executing SHM is always directed towards

Question # 10

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

Question # 11

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

Question # 12

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

Question # 13

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

Question # 14

Which one of the following is an example of SHM:

Question # 15

The acceleration of body executing SHM is directly proportional to

Question # 16

The unit of spring constant is

Question # 17

If the waves produced in a microwave oven are of wave-length 12 cm, then their frequency will be:

Question # 18

When a mass attached to a spring begins to move left or right from the equilibrium position, its P.E.:

Question # 19

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

Question # 20

The unit of spring constant is:

Question # 21

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

Question # 22

Vibratory motion is always under

Question # 23

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

Question # 24

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

Question # 25

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

Question # 26

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

Question # 27

A body with frequency would complete one vibration in:

Question # 28

Which of the following forces is responsible for SHM

Question # 29

The graph showing the variation of displacement with time is a

Question # 30

An oscillating body oscillates due to:

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 An object in SHM will have maximum speed when its displacement from equilibrium position is:
A. Infinity
B. Maximum
C. Zero
D. Minimum
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 Which of the following forces is responsible for SHM
A. Applied force
B. Restoring force
C. Fractional force
D. Elastic force
4 The unit of spring constant is:
A. J-sec
B. Metre
C. Nm-1
D. None of these
5 When quarter of a cycle is completed, the phase of vibration is:
A. 90°
B. 180°
C. 45°
D. 360°
6 The body oscillates due to ______ accelerates and overshoots the rest position due to _______
A. Applied force, Inertia
B. Restoring force, Friction
C. Frictional force, Inertia
D. Restoring force, Inertia
7 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
8 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
9 Acceleration of body executing SHM is always directed towards
A. Extreme position
B. Mean position
C. Along the direction of motion
D. None
10 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

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