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

Question # 2

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

Question # 3

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

Question # 4

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

Question # 5

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

Question # 6

When a body is vibrating, the displacement from mean position

Question # 7

An object in SHM will have maximum speed when its displacement from equilibrium position is:

Question # 8

In vibrational motion(SHM)

Question # 9

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 # 10

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

Question # 11

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

Question # 12

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

Question # 13

The number of vibration in two seconds can be expressed as
______ of frequency of vibration is f:

Question # 14

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

Question # 15

The string of a simple pendulum should be:

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 The restoring force is _____ and opposite to the applied force within ______,:
A. Equal, elastic limit
B. Different, the walls of the laboratory
C. Different, elastic limit
D. None of these
2 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
3 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
4 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
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, the phase of vibration is:
A. 90°
B. 180°
C. 45°
D. 360°
7 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
8 The number of vibrations in two seconds can be expressed as______if frequency of vibration is f.
A. f
B. 2 f
C. 3 f
D. 1/2 f
9 When quarter of a cycle is completed, the phase of vibration is:
A. 90°
B. 180°
C. 45°
D. 360°
10 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

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