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

Velocity of particle executing SHM will be maximum at

Question # 3

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

Question # 4

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

Question # 5

Acceleration of body executing SHM is always directed towards

Question # 6

SHM is type of ______ motion

Question # 7

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

Question # 8

Free oscillations are always produced by:

Question # 9

A particle is moving along a circular path with uniform speed. Its projection will execute ___along the _____ of the circle:

Question # 10

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

Question # 11

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

Question # 12

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

Question # 13

Amplitude in SHM is equivalent to_____ in circular motion:

Question # 14

Amplitude in SHM is equivalent to ______ in circular motion

Question # 15

The time taken to complete one vibration is called:

Question # 16

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

Question # 17

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

Question # 18

In vibrational motion(SHM)

Question # 19

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

Question # 20

The unit of spring constant is

Question # 21

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

Question # 22

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

Question # 23

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

Question # 24

Which of the following forces is responsible for SHM

Question # 25

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

Question # 26

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

Question # 27

The S.I unit of frequency is

Question # 28

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

Question # 29

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

Question # 30

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

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 If time period of a pendulum is doubled by increasing its length, then its frequency will
A. Also be doubled
B. Become half
C. Become one fourth
D. Becomes four times
2 Amplitude in SHM is equivalent to_____ in circular motion:
A. Diameter
B. Radius
C. Circumference
D. None of these
3 When quarter of a cycle is completed, the phase of vibration is:
A. 90°
B. 180°
C. 45°
D. 360°
4 An object in SHM will have maximum speed when its displacement from equilibrium position is:
A. Infinity
B. Maximum
C. Zero
D. Minimum
5 In SHM, there is always a constant ratio between displacement if body and its:
A. Velocity
B. Period
C. Mass
D. Acceleration
6 Which one of the following is an example of SHM:
A. Motion in a plane
B. Motion in a swing
C. Motion in a car
D. None of these
7 The body oscillates due to ______ accelerates and overshoots the rest position due to _____:
A. Applied force , inertia
B. Restoring force, friction
C. Frictional force, inertia
D. Restoring force, inertia
8 The unit of spring constant is
A. J-sec
B. Metre
C. Nm-1
D. None of these
9 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
10 The graph showing the variation of displacement with time is a:
A. Sine curve
B. Straight line
C. Parabola
D. None of these

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