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

In vibrational motion(SHM)

Question # 2

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

Question # 3

The wave form of SHM is

Question # 4

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

Question # 5

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

Question # 6

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

Question # 7

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

Question # 8

Amplitude in SHM is equivalent to ______ in circular motion:

Question # 9

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

Question # 10

When a body is vibrating, the displacement from mean position:

Question # 11

The unit of spring constant is:

Question # 12

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 # 13

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

Question # 14

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

Question # 15

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

Question # 16

An oscillating body oscillates due to:

Question # 17

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

Question # 18

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

Question # 19

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

Question # 20

The SI unit of spring constant is identical with that of

Question # 21

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

Question # 22

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

Question # 23

An object undergoes SHM. Its maximum equilibrium positions:

Question # 24

Amplitude in SHM is equivalent to ______ in circular motion

Question # 25

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

Question # 26

The graph showing the variation of displacement with time is a

Question # 27

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

Question # 28

The time taken to complete one vibration is called:

Question # 29

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

Question # 30

The displacement of body executing SHM is

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 The string of a simple pendulum should be:
A. Heavy
B. Extensible
C. In-extensible
D. None of these
2 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
3 Which of the following forces is responsible for SHM
A. Applied force
B. Restoring force
C. Fractional force
D. Elastic force
4 Second's pendulum is the pendulum whose time period is:
A. 1 second
B. 2 second
C. 3 second
D. None of these
5 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:
A. 4 gms
B. 0.4 gm
C. 40 gms
D. None of these
6 If mass of 10 gm is suspended from a spring of K=0.8 Nm-1then the extension will be:
A. 10 cm
B. 1 m
C. 10 mn
D. None of these
7 Vibratory motion is always under
A. Applied force
B. Restoring force
C. Periodic force
D. Gravitational force
8 When a mass attached to a spring begins to move left or right from the equilibrium position, its P.E.:
A. Increases
B. Decreases
C. Remains constant
D. None of these
9 To and fro motion of a body is about its mean position is known as:
A. Translatory motion
B. Vibratory motion
C. Rotatory motion
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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