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

When a body is vibrating, the displacement from mean position

Question # 2

Vibratory motion is always under

Question # 3

Acceleration of body executing SHM is always directed towards

Question # 4

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

Question # 5

In SHM, there is always a constant ratio between displacement if body and its:

Question # 6

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

Question # 7

SHM is type of ______ motion

Question # 8

An oscillating body oscillates due to:

Question # 9

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

Question # 10

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

Question # 11

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

Question # 12

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

Question # 13

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

Question # 14

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

Question # 15

The unit of spring constant is

Question # 16

The number of vibrations in two seconds can be expressed as______if frequency of vibration is f.

Question # 17

When quarter of a cycle is completed, the phase of vibration is:

Question # 18

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

Question # 19

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

Question # 20

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

Question # 21

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

Question # 22

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

Question # 23

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

Question # 24

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

Question # 25

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

Question # 26

The time taken to complete one vibration is called:

Question # 27

The restoring force is always directed towards:

Question # 28

When a mass attached to a spring begins to move left or right from the equilibrium position, its P.E.:

Question # 29

In vibrational motion(SHM)

Question # 30

Amplitude is the displacement of the vibrating body from:

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 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
2 If a force of 0.05 N produces an elongation of 20 mm in 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
3 The SI unit of spring constant is identical with that of
A. Force
B. Surface tension
C. Pressure
D. Loudness
4 The graph showing the variation of displacement with time is a:
A. Sine curve
B. Straight line
C. Parabola
D. None of these
5 Hertz is unit of:
A. Time period
B. Displacement
C. Amplitude
D. Frequency
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 The acceleration of body executing SHM is directly proportional to
A. Applied force
B. Amplitude
C. Displacement
D. Frictional force
8 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
9 The number of vibration in two seconds can be expressed as
______ of frequency of vibration is f:
A. f
B. 2 f
C. 3 f
D. 1/2 f
10 Second's pendulum is the pendulum whose time period is:
A. 1 second
B. 2 second
C. 3 second
D. None of these

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