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

Question # 2

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

Question # 3

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

Question # 4

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

Question # 5

If a mass of 10 gm is suspended from a spring of k = 9.8 Nm-1, then the extension will be:

Question # 6

Amplitude in SHM is equivalent to ______ in circular motion:

Question # 7

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

Question # 8

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

Question # 9

Velocity of particle executing SHM will be maximum at

Question # 10

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

Question # 11

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

Question # 12

The number of vibrations in two seconds can be expressed as______if frequency of vibration is f.

Question # 13

Which one of the following is an example of SHM

Question # 14

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

Question # 15

The unit of spring constant is:

Question # 16

Free oscillations are always produced by:

Question # 17

Acceleration of body executing SHM is always directed towards

Question # 18

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 # 19

An object undergoes SHM. Its maximum equilibrium positions:

Question # 20

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

Question # 21

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

Question # 22

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

Question # 23

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

Question # 24

A body with frequency would complete one vibration in:

Question # 25

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

Question # 26

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

Question # 27

The graph showing the variation of displacement with time is a

Question # 28

The restoring force is always directed towards:

Question # 29

When a body is vibrating, the displacement from mean position

Question # 30

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:

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 The graph showing the variation of displacement with time is a
A. Sine curve
B. Straight line
C. Parabola
D. None of these
2 If mass of 10 gm is suspended from a spring of K=0.8 Nm-1then the extension will be:
A. 10 cm
B. 1 m
C. 10 mn
D. None of these
3 In SHM, the acceleration is ______ when velocity is _____:
A. Zero, smallest
B. Smallest, zero
C. Zero, zero
D. Zero, greatest
4 A particle is moving along a circular path with uniform speed. Its projection will execute ___along the _____ of the circle:
A. Circular motion, circumference
B. Vibratory, chord
C. SHM, diameter
D. SHM, circumference
5 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:
A. 4 gms
B. 0.4 gms
C. 40 gms
D. None of these
6 Which of the following forces is responsible for SHM
A. Applied force
B. Restoring force
C. Fractional force
D. Elastic force
7 An oscillating body oscillates due to:
A. Applied force
B. Restoring force
C. Frictional force
D. None of these
8 When a mass attached to a spring begins to move left or right from the equilibrium position, its P.E.:
A. Increases
B. Decreases
C. Remains constant
D. None of these
9 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
10 The S.I unit of frequency is
A. Vibrations s-2
B. Ms-1
C. Hertz
D. s-1

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