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 SI unit of spring constant is identical with that of

Question # 2

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

Question # 3

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

Question # 4

The S.I unit of frequency is

Question # 5

A body with frequency of would complete one vibration in:

Question # 6

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

Question # 7

The unit of spring constant is

Question # 8

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

Question # 9

The unit of spring constant is:

Question # 10

An oscillating body oscillates due to:

Question # 11

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

Question # 12

In vibrational motion(SHM)

Question # 13

In SHM, the acceleration is ______ when velocity is _____:

Question # 14

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

Question # 15

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 # 16

Amplitude in SHM is equivalent to_____ in circular motion:

Question # 17

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

Question # 18

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

Question # 19

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

Question # 20

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

Question # 21

Which of the following forces is responsible for SHM

Question # 22

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

Question # 23

Velocity of particle executing SHM will be maximum at

Question # 24

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 # 25

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

Question # 26

Hertz is unit of:

Question # 27

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

Question # 28

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

Question # 29

The displacement of body executing SHM is

Question # 30

The graph showing the variation of displacement with time is a

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 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
2 The acceleration of body executing SHM is directly proportional to
A. Applied force
B. Amplitude
C. Displacement
D. Frictional force
3 The restoring force is always directed towards:
A. Rest position
B. Equilibrium position
C. Mean position
D. All of them
4 When quarter of a circle is completed, phase of vibration is:
A. 90°
B. 180°
C. 45°
D. 360°
5 If there identical strings each of constant K are hooked together the spring constant of resultant spring will be:
A. 3 K
B. 2 K
C. K/4
D. K/3
6 A particle executes SHM with frequency. The frequency with which its K.E oscillates is
A. f/2
B. 2f
C. f
D. 4f
7 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
8 The restoring force is _____ and opposite to the applied force within ______,:
A. Equal, elastic limit
B. Different, the walls of the laboratory
C. Different, elastic limit
D. None of these
9 An object undergoes SHM. Its maximum equilibrium positions:
A. Maximum
B. Half of its maximum value
C. Zero
D. None
10 If a force of 0.05 N produces an elongation of 20 mm in a 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

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