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

Which of the following quantity for particle executing SHM is non-zero at mean position

Question # 3

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

Question # 4

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

Question # 5

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

Question # 6

A body with frequency of would complete one vibration in:

Question # 7

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

Question # 8

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

Question # 9

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

Question # 10

A spring of constant k = 0.4 N m-1is to be extended through 10 cm at a place where g = 10 m sec-2. The mass to be suspended should be:

Question # 11

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

Question # 12

The S.I unit of frequency is

Question # 13

Which of the following forces is responsible for SHM

Question # 14

The graph showing the variation of displacement with time is a

Question # 15

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

Question # 16

The graph showing the variation of displacement with time is a:

Question # 17

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

Question # 18

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

Question # 19

The unit of spring constant is:

Question # 20

The string of a simple pendulum should be:

Question # 21

The restoring force is always directed towards:

Question # 22

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

Question # 23

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

Question # 24

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

Question # 25

Which of the following is an example of SHM(in ideal situations)

Question # 26

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 # 27

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

Question # 28

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

Question # 29

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

Question # 30

Which one of the following is an example of SHM:

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 The unit of spring constant is
A. J-sec
B. Metre
C. Nm-1
D. None of these
2 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
3 The number of vibration in two seconds can be expressed as
______ of frequency of vibration is f:
A. f
B. 2 f
C. 3 f
D. 1/2 f
4 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
5 If a mass of 10 gm is suspended from a spring of k = 9.8 Nm-1, then the extension will be:
A. 1 cm
B. 1 m
C. 10 mm
D. None of these
6 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
7 Free oscillations are always produced by:
A. An applied force
B. Gravitational force
C. Restoring force and inertia
D. Inertia only
8 To and from motion of a body about its mean position is known as:
A. Translatory motion
B. Vibratory motion
C. Rotatory motion
D. None of these
9 If a force of 0.05 N produces an elongation of 20 mm in a 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
10 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

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