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 displacement of body executing SHM is

Question # 3

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

Question # 4

Amplitude in SHM is equivalent to ______ in circular motion

Question # 5

Which one of the following is an example of SHM

Question # 6

In vibrational motion(SHM)

Question # 7

The graph showing the variation of displacement with time is a

Question # 8

An oscillating body oscillates due to:

Question # 9

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

Question # 10

Free oscillations are always produced by:

Question # 11

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

Question # 12

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 # 13

Acceleration of body executing SHM is always directed towards

Question # 14

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

Question # 15

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

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 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
2 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
3 The graph showing the variation of displacement with time is a:
A. Sine curve
B. Straight line
C. Parabola
D. None of these
4 The time period of a simple pendulum is independent of its:
A. Length
B. Mass
C. Value of g
D. Both A and B
5 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
6 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
7 A particle is moving along a circular path with uniform speed. Its projection will execute____along the____of the circle:
A. Circular motion, circumference
B. Vibrator, chord
C. SHM, diameter
D. SHM, circumference
8 A body with frequency of would complete one vibration in:
A. f seconds
B. 1/f seconds
C. 1 second
D. f2second
9 The wave form of SHM is
A. Pulsed wave
B. Square wave
C. Triangular waved
D. Sine wave
10 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

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