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

Question # 2

Amplitude in SHM is equivalent to ______ in circular motion:

Question # 3

An oscillating body oscillates due to:

Question # 4

A body with frequency would complete one vibration in:

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

Free oscillations are always produced by:

Question # 7

An object undergoes SHM. Its maximum equilibrium positions:

Question # 8

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

Question # 9

When a body is vibrating, the displacement from mean position

Question # 10

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

Question # 11

The string of a simple pendulum should be:

Question # 12

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

Question # 13

The acceleration of body executing SHM is directly proportional to

Question # 14

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

Question # 15

Amplitude in SHM is equivalent to_____ in circular motion:

Question # 16

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

Question # 17

Amplitude in SHM is equivalent to ______ in circular motion

Question # 18

Acceleration of body executing SHM is always directed towards

Question # 19

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

Question # 20

The SI unit of spring constant is identical with that of

Question # 21

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

Question # 22

The unit of spring constant is

Question # 23

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

Question # 24

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

Question # 25

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

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 graph showing the variation of displacement with time is a

Question # 28

The restoring force is always directed towards:

Question # 29

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

Question # 30

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

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ECAT 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 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
3 Amplitude is the displacement of the vibrating body from:
A. One extreme position to the other extreme position
B. Mean position any one extreme position
C. Both A and B are correct
D. None 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 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
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 SI unit of spring constant is identical with that of:
A. Force
B. Surface tension
C. Pressure
D. Loudness
8 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
9 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. Vibrator, chord
C. SHM, diameter
D. SHM, circumference
10 The time period of a simple pendulum is independent of its:
A. Length
B. Mass
C. Value of g
D. Both A and B

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