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

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

Question # 2

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

Question # 3

The unit of spring constant is:

Question # 4

The string of a simple pendulum should be:

Question # 5

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

Question # 6

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

Question # 7

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

Question # 8

The graph showing the variation of displacement with time is a

Question # 9

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

Question # 10

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

Question # 11

The SI unit of spring constant is identical with that of

Question # 12

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

Question # 13

When a body is vibrating, the displacement from mean position

Question # 14

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

Question # 15

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

Question # 16

The acceleration of body executing SHM is directly proportional to

Question # 17

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

Question # 18

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 # 19

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

Question # 20

Acceleration of body executing SHM is always directed towards

Question # 21

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

Question # 22

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 # 23

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

Question # 24

A particle moving uniformly along circle its projection along diameter performs

Question # 25

Which of the following forces is responsible for SHM

Question # 26

Velocity of particle executing SHM will be maximum at

Question # 27

Amplitude in SHM is equivalent to ______ in circular motion:

Question # 28

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

Question # 29

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

Question # 30

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

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 When quarter of a circle is completed, phase of vibration is:
A. 90°
B. 180°
C. 45°
D. 360°
2 The graph showing the variation of displacement with time is a:
A. Sine curve
B. Straight line
C. Parabola
D. None of these
3 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
4 Which of the following is an example of SHM(in ideal situations)
A. Motion of simple pendulum
B. Motion of horizontal spring man system
C. Motion of violin string
D. All of these
5 An object in SHM will have maximum speed when its displacement from equilibrium position is:
A. Infinity
B. Maximum
C. Zero
D. Minimum
6 Distance covered during one vibration of an oscillating body in terms of amplitude A is:
A. A
B. 2 A
C. 3 A
D. 4 A
7 Which of the following forces is responsible for SHM
A. Applied force
B. Restoring force
C. Fractional force
D. Elastic force
8 In SHM, there is always a constant ratio between displacement if body and its:
A. Velocity
B. Period
C. Mass
D. Acceleration
9 The body oscillates due to _____ accelerates and overshoots the rest position due to______,:
A. Applied force, inertial
B. Restoring force, friction
C. Frictional force, inertial
D. Restoring force, inertial
10 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

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