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

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

Question # 2

The wave form of SHM is

Question # 3

Free oscillations are always produced by:

Question # 4

The displacement of body executing SHM is

Question # 5

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

Question # 6

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

Question # 7

A body with frequency would complete one vibration in:

Question # 8

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

Question # 9

The restoring force is always directed towards:

Question # 10

A body with frequency of would complete one vibration in:

Question # 11

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

Question # 12

Amplitude in SHM is equivalent to_____ in circular motion:

Question # 13

When a body is vibrating, the displacement from mean position

Question # 14

Which one of the following is an example of SHM

Question # 15

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

Question # 16

In vibrational motion(SHM)

Question # 17

The graph showing the variation of displacement with time is a

Question # 18

The SI unit of spring constant is identical with that of

Question # 19

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

Question # 20

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

Question # 21

The acceleration of body executing SHM is directly proportional to

Question # 22

The S.I unit of frequency is

Question # 23

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

Question # 24

A particle moving uniformly along circle its projection along diameter performs

Question # 25

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

Question # 26

Amplitude in SHM is equivalent to ______ in circular motion:

Question # 27

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

Question # 28

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

Question # 29

The time taken to complete one vibration is called:

Question # 30

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

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 A particle moving uniformly along circle its projection along diameter performs
A. Linear motion
B. Projectile motion
C. SHM
D. Rotatory motion
2 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
3 Which of the following forces is responsible for SHM
A. Applied force
B. Restoring force
C. Fractional force
D. Elastic force
4 A body with frequency would complete one vibration in:
A. f seconds
B. 1/f seconds
C. 1 second
D. f2second
5 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:
A. 1.5 sec
B. 2.0 sec
C. 2.3 sec
D. 2.5 sec
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 The S.I unit of frequency is
A. Vibrations s-2
B. Ms-1
C. Hertz
D. s-1
8 Distance covered during one vibration of an oscillating body in terms of amplitude A is:
A. A
B. 2 A
C. 3 A
D. 4 A
9 Hertz is unit of:
A. Time period
B. Displacement
C. Amplitude
D. Frequency
10 The unit of spring constant is
A. J-sec
B. Metre
C. Nm-1
D. None of these

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