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

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

Question # 2

Amplitude in SHM is equivalent to ______ in circular motion

Question # 3

SHM is type of ______ motion

Question # 4

The restoring force is always directed towards:

Question # 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:

Question # 6

In vibrational motion(SHM)

Question # 7

The S.I unit of frequency is

Question # 8

A body with frequency would complete one vibration in:

Question # 9

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

Question # 10

The acceleration of body executing SHM is directly proportional to

Question # 11

Which one of the following is an example of SHM:

Question # 12

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

Question # 13

Amplitude in SHM is equivalent to ______ in circular motion:

Question # 14

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

Question # 15

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

Question # 16

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

Question # 17

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

Question # 18

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

Question # 19

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

Question # 20

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

Question # 21

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

Question # 22

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

Question # 23

Which one of the following is an example of SHM

Question # 24

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

Question # 25

The unit of spring constant is:

Question # 26

The unit of spring constant is

Question # 27

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

Question # 28

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

Question # 29

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

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 displacement of body executing SHM is
A. xocoswt
B. xosinwt
C. xosin2wt
D. Both A, B
2 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
3 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
4 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
5 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
6 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
7 The restoring force is ______ and opposite tot he applied force within ______
A. Equal, Elastic limit
B. Different, The walls of the laboratory
C. Different, Elastic limit
D. None of these
8 The time period of a simple pendulum is independent of its:
A. Length
B. Mass
C. Value of g
D. Both A and B
9 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
10 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

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