ECAT Pre Engineering Physics Chapter 7 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 7 Oscillations

Try The MCQ's Test For Physics ECAT Pre Engineering Chapter 7 Oscillations

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Physics ECAT Pre Engineering Chapter 7 Oscillations

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Question # 1

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

Question # 2

The unit of spring constant is

Question # 3

Which one of the following is an example of SHM:

Question # 4

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

Question # 5

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

Question # 6

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

Question # 7

An angle of 180° in circular motion is equivalent to ______ in SHM.

Question # 8

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

Question # 9

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

Question # 10

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

Question # 11

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

Question # 12

A body with frequency of would complete one vibration in:

Question # 13

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

Question # 14

An oscillating body oscillates due to:

Question # 15

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

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 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
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 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
4 The string of a simple pendulum should be:
A. Heavy
B. Extensible
C. In-extensible
D. None of these
5 Velocity of particle executing SHM will be maximum at
A. Extreme position
B. Mean position
C. b/w mean and extreme
D. None
6 The time taken to complete one vibration is called:
A. Frequency
B. Amplitude
C. Time
D. Time period
7 The restoring force is always directed towards:
A. Rest position
B. Equilibrium position
C. Mean position
D. All of them
8 The time period of a simple pendulum is independent of its:
A. Length
B. Mass
C. Value of g
D. Both A and B
9 Second's pendulum is the pendulum whose time period is:
A. 1 second
B. 2 second
C. 3 second
D. None of these
10 In SHM, there is always a constant ratio between displacement if body and its:
A. Velocity
B. Period
C. Mass
D. Acceleration

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