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

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:

Question # 2

A particle moving uniformly along circle its projection along diameter performs

Question # 3

A spring of constant k = 0.4 N m-1is to be extended through 10 cm at a place where g = 10 m sec-2. The mass to be suspended should be:

Question # 4

The time taken to complete one vibration is called:

Question # 5

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

Question # 6

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

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

Which one of the following is an example of SHM:

Question # 9

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 # 10

Which of the following forces is responsible for SHM

Question # 11

Amplitude in SHM is equivalent to ______ in circular motion:

Question # 12

Which one of the following is an example of SHM

Question # 13

The time period of a simple pendulum is independent of its:

Question # 14

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

Question # 15

Acceleration of body executing SHM is always directed towards

Question # 16

The unit of spring constant is:

Question # 17

If time period of a pendulum is doubled by increasing its length, then its frequency will

Question # 18

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

Question # 19

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

Question # 20

An angle of 180° in circular motion is equivalent to ______ in SHM.

Question # 21

SHM is type of ______ motion

Question # 22

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

Question # 23

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

Question # 24

Distance covered during one vibration of an oscillating body in terms of amplitude A is:

Question # 25

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

Question # 26

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

Question # 27

Free oscillations are always produced by:

Question # 28

The graph showing the variation of displacement with time is a

Question # 29

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

Question # 30

The displacement of body executing SHM is

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 SHM is type of ______ motion
A. Vibratory
B. Linear
C. Circular
D. None
2 The SI unit of spring constant is identical with that of
A. Force
B. Surface tension
C. Pressure
D. Loudness
3 The restoring force is always directed towards:
A. Rest position
B. Equilibrium position
C. Mean position
D. All of them
4 Free oscillations are always produced by:
A. An applied force
B. Gravitational force
C. Restoring force and inertia
D. Inertia only
5 The displacement of body executing SHM is
A. xocoswt
B. xosinwt
C. xosin2wt
D. Both A, B
6 When a mass attached to a spring begins to move left or right from the equilibrium position, its P.E.:
A. Increases
B. Decreases
C. Remains constant
D. None of these
7 A spring of constant k = 0.4 N m-1is to be extended through 10 cm at a place where g = 10 m sec-2. The mass to be suspended should be:
A. 4 gms
B. 0.4 gm
C. 40 gms
D. None of these
8 An angle of 180° in circular motion is equivalent to ______ in SHM.
A. Half the vibration
B. One vibration
C. 3/4th of a vibration
D. None of these
9 When quarter of a circle is completed, the phase of vibration is:
A. 90°
B. 180°
C. 45°
D. 360°
10 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

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