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

Which of the following forces is responsible for SHM

Question # 2

The unit of spring constant is:

Question # 3

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

Question # 4

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

Question # 5

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

Question # 6

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

Question # 7

Free oscillations are always produced by:

Question # 8

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

Question # 9

Hertz is unit of:

Question # 10

An oscillating body oscillates due to:

Question # 11

Acceleration of body executing SHM is always directed towards

Question # 12

Amplitude in SHM is equivalent to ______ in circular motion:

Question # 13

The SI unit of spring constant is identical with that of

Question # 14

A particle moving uniformly along circle its projection along diameter performs

Question # 15

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 # 16

When a body is vibrating, the displacement from mean position

Question # 17

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

Question # 18

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

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

Vibratory motion is always under

Question # 21

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

Question # 22

The wave form of SHM is

Question # 23

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

Question # 24

The maximum distance of body from mean position when body is executing SHM is called

Question # 25

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

Question # 26

A body with frequency of would complete one vibration in:

Question # 27

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

Question # 28

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

Question # 29

The graph showing the variation of displacement with time is a

Question # 30

A body with frequency would complete one vibration in:

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 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
2 A body with frequency would complete one vibration in:
A. f seconds
B. 1/f seconds
C. 1 second
D. f2second
3 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
4 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
5 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
6 When quarter of a circle is completed, phase of vibration is:
A. 90°
B. 180°
C. 45°
D. 360°
7 Which of the following forces is responsible for SHM
A. Applied force
B. Restoring force
C. Fractional force
D. Elastic force
8 If the waves produced in a microwave oven are of wave-length 12 cm, then their frequency will be:
A. 2500 MHz
B. 0.25 MHz
C. 2500 KHz
D. None of these
9 If a given spring of spring constant K is cut into two identical segments, the spring constant of each segment is:
A. K/2
B. 2 K
C. 4 K
D. None of these
10 SHM is type of ______ motion
A. Vibratory
B. Linear
C. Circular
D. None

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