ECAT Pre General Science Physics Chapter 7 MCQ Test With Answer

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

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

Question # 2

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

Question # 3

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

Question # 4

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

Question # 5

The acceleration of body executing SHM is directly proportional to

Question # 6

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

Question # 7

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

Question # 8

The time taken to complete one vibration is called:

Question # 9

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

Question # 10

A body with frequency of would complete one vibration in:

Question # 11

A body with frequency would complete one vibration in:

Question # 12

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

Question # 13

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

Question # 14

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

Question # 15

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

Question # 16

Amplitude in SHM is equivalent to_____ in circular motion:

Question # 17

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

Question # 18

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

Question # 19

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 # 20

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

Question # 21

A particle moving uniformly along circle its projection along diameter performs

Question # 22

Which of the following forces is responsible for SHM

Question # 23

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

Question # 24

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

Question # 25

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

Question # 26

The number of vibration in two seconds can be expressed as
______ of frequency of vibration is f:

Question # 27

The unit of spring constant is

Question # 28

The restoring force is always directed towards:

Question # 29

The string of a simple pendulum should be:

Question # 30

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

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 In vibrational motion(SHM)
A. P.E remains conserved
B. Average K.E remain constant
C. Neither P.E nor K.E remains constant
D. Total energy remains constant
2 The restoring force is always directed towards:
A. Rest position
B. Equilibrium position
C. Mean position
D. All of them
3 The S.I unit of frequency is
A. Vibrations s-2
B. Ms-1
C. Hertz
D. s-1
4 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
5 Which of the following quantity for particle executing SHM is non-zero at mean position
A. Force
B. Acceleration
C. Velocity
D. Displacement
6 An object in SHM will have maximum speed when its displacement from equilibrium position is:
A. Infinity
B. Maximum
C. Zero
D. Minimum
7 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
8 The unit of spring constant is:
A. J-sec
B. Metre
C. Nm-1
D. None of these
9 If a given spring of spring constant K is cut into two identical segments, the spring constant of each segment is:
A. K/2
B. 2 K
C. 4 K
D. None of these
10 When quarter of a cycle is completed, the phase of vibration is:
A. 90°
B. 180°
C. 45°
D. 360°

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