ECAT Pre General Science Physics Chapter 7 MCQ Test With Answer

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

The restoring force is always directed towards:

Question # 2

Distance covered during one vibration of an oscillating body in terms of amplitude A is:

Question # 3

A spring of constant k = 0.4 N m-1is to be extended through 10 cm at a place where g = 10 m sec-2. The mass to be suspended should be:

Question # 4

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

Question # 5

SHM is type of ______ motion

Question # 6

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

Question # 7

Vibratory motion is always under

Question # 8

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

Question # 9

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

Question # 10

The unit of spring constant is

Question # 11

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

Question # 12

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

Question # 13

The S.I unit of frequency is

Question # 14

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

Question # 15

Which of the following forces is responsible for SHM

Question # 16

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

Question # 17

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

Question # 18

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

Question # 19

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

Question # 20

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

Question # 21

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 # 22

The graph showing the variation of displacement with time is a

Question # 23

An oscillating body oscillates due to:

Question # 24

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

Question # 25

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

Question # 26

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

Question # 27

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

Question # 28

Hertz is unit of:

Question # 29

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

Question # 30

The graph showing the variation of displacement with time is a:

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 If a given spring of spring constant K is cut into two identical segments, the spring constant of each segment is:
A. K/2
B. 2 K
C. 4 K
D. None of these
2 An object in SHM will have maximum speed when its displacement from equilibrium position is:
A. Infinity
B. Maximum
C. Zero
D. Minimum
3 A body with frequency of would complete one vibration in:
A. f seconds
B. 1/f seconds
C. 1 second
D. f2second
4 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
5 In vibrational motion(SHM)
A. P.E remains conserved
B. Average K.E remain constant
C. Neither P.E nor K.E remains constant
D. Total energy remains constant
6 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. Vibratory, chord
C. SHM, diameter
D. SHM, circumference
7 To and from motion of a body about its mean position is known as:
A. Translatory motion
B. Vibratory motion
C. Rotatory motion
D. None of these
8 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
9 When quarter of a circle is completed, phase of vibration is:
A. 90°
B. 180°
C. 45°
D. 360°
10 To and fro motion of a body is about its mean position is known as:
A. Translatory motion
B. Vibratory motion
C. Rotatory motion
D. None of these

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