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

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

Question # 2

Which of the following forces is responsible for SHM

Question # 3

When a body is vibrating, the displacement from mean position

Question # 4

The acceleration of body executing SHM is directly proportional to

Question # 5

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

Question # 6

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

Question # 7

Vibratory motion is always under

Question # 8

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

Question # 9

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

Question # 10

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

Question # 11

Amplitude in SHM is equivalent to ______ in circular motion:

Question # 12

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

Question # 13

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

Question # 14

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 # 15

A particle is moving along a circular path with uniform speed. Its projection will execute____along the____of the circle:

Question # 16

A body with frequency would complete one vibration in:

Question # 17

A body with frequency of would complete one vibration in:

Question # 18

The graph showing the variation of displacement with time is a

Question # 19

The unit of spring constant is

Question # 20

The string of a simple pendulum should be:

Question # 21

Amplitude in SHM is equivalent to_____ in circular motion:

Question # 22

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

Question # 23

SHM is type of ______ motion

Question # 24

The unit of spring constant is:

Question # 25

Amplitude is the displacement of the vibrating body from:

Question # 26

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

Question # 27

Free oscillations are always produced by:

Question # 28

Acceleration of body executing SHM is always directed towards

Question # 29

Amplitude in SHM is equivalent to ______ in circular motion

Question # 30

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

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 The body oscillates due to _____ accelerates and overshoots the rest position due to______,:
A. Applied force, inertial
B. Restoring force, friction
C. Frictional force, inertial
D. Restoring force, inertial
2 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
3 If a force of 0.05 N produces an elongation of 20 mm in 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
4 Which of the following is an example of SHM(in ideal situations)
A. Motion of simple pendulum
B. Motion of horizontal spring man system
C. Motion of violin string
D. All of these
5 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
6 Hertz is unit of:
A. Time period
B. Displacement
C. Amplitude
D. Frequency
7 The restoring force is always directed towards:
A. Rest position
B. Equilibrium position
C. Mean position
D. All of them
8 When quarter of a cycle is completed, the phase of vibration is:
A. 90°
B. 180°
C. 45°
D. 360°
9 In SHM, the acceleration is ______ when velocity is _____:
A. Zero, smallest
B. Smallest, zero
C. Zero, zero
D. Zero, greatest
10 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

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