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

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

Question # 2

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 # 3

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

Question # 4

The restoring force is always directed towards:

Question # 5

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

Question # 6

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

Question # 7

The S.I unit of frequency is

Question # 8

Acceleration of body executing SHM is always directed towards

Question # 9

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

Question # 10

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

Question # 11

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

Question # 12

A body with frequency of would complete one vibration in:

Question # 13

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

Question # 14

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

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

Question # 17

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

Question # 18

Amplitude in SHM is equivalent to_____ in circular motion:

Question # 19

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

Question # 20

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

Question # 21

When a body is vibrating, the displacement from mean position

Question # 22

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 # 23

Amplitude in SHM is equivalent to ______ in circular motion:

Question # 24

An object undergoes SHM. Its maximum equilibrium positions:

Question # 25

The acceleration of body executing SHM is directly proportional to

Question # 26

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

Question # 27

The graph showing the variation of displacement with time is a

Question # 28

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

Question # 29

The wave form of SHM is

Question # 30

The SI unit of spring constant is identical with that of

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 Amplitude in SHM is equivalent to ______ in circular motion
A. Diameter
B. Radius
C. Circumference
D. None of these
2 To and fro motion of a body is about its mean position is known as:
A. Translatory motion
B. Vibratory motion
C. Rotatory motion
D. None of these
3 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
4 The SI unit of spring constant is identical with that of:
A. Force
B. Surface tension
C. Pressure
D. Loudness
5 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
6 An object undergoes SHM. Its maximum equilibrium positions:
A. Maximum
B. Half of its maximum value
C. Zero
D. None
7 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
8 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
9 An oscillating body oscillates due to:
A. Applied force
B. Restoring force
C. Frictional force
D. None of these
10 A particle executes SHM with frequency. The frequency with which its K.E oscillates is
A. f/2
B. 2f
C. f
D. 4f

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