ECAT Pre Computer Science Chapter 7 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 7 Oscillations

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ECAT Physics Chapter 7 Oscillations

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Question # 1

The unit of spring constant is:

Question # 2

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

Question # 3

The string of a simple pendulum should be:

Question # 4

The wave form of SHM is

Question # 5

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

Question # 6

The SI unit of spring constant is identical with that of

Question # 7

The time taken to complete one vibration is called:

Question # 8

The displacement of body executing SHM is

Question # 9

Which of the following forces is responsible for SHM

Question # 10

Amplitude in SHM is equivalent to ______ in circular motion

Question # 11

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

Question # 12

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

Question # 13

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

Question # 14

If mass of 10 gm is suspended from a spring of K=0.8 Nm-1then the extension will be:

Question # 15

The restoring force is always directed towards:

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 The S.I unit of frequency is
A. Vibrations s-2
B. Ms-1
C. Hertz
D. s-1
2 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
3 The SI unit of spring constant is identical with that of:
A. Force
B. Surface tension
C. Pressure
D. Loudness
4 In SHM, there is always a constant ratio between displacement if body and its:
A. Velocity
B. Period
C. Mass
D. Acceleration
5 The graph showing the variation of displacement with time is a:
A. Sine curve
B. Straight line
C. Parabola
D. None of these
6 The restoring force is ______ and opposite tot he applied force within ______
A. Equal, Elastic limit
B. Different, The walls of the laboratory
C. Different, Elastic limit
D. None of these
7 If there identical strings each of constant K are hooked together the spring constant of resultant spring will be:
A. 3 K
B. 2 K
C. K/4
D. K/3
8 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
9 Vibratory motion is always under
A. Applied force
B. Restoring force
C. Periodic force
D. Gravitational force
10 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

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