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

Which one of the following is an example of SHM

Question # 2

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

Question # 3

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

Question # 4

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

Question # 5

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

Question # 6

Amplitude is the displacement of the vibrating body from:

Question # 7

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

Question # 8

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 # 9

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

Question # 10

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

Question # 11

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

Question # 12

Acceleration of body executing SHM is always directed towards

Question # 13

A body with frequency would complete one vibration in:

Question # 14

Amplitude in SHM is equivalent to_____ in circular motion:

Question # 15

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

Question # 16

Hertz is unit of:

Question # 17

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

Question # 18

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

Question # 19

Which one of the following is an example of SHM:

Question # 20

Amplitude in SHM is equivalent to ______ in circular motion

Question # 21

The string of a simple pendulum should be:

Question # 22

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

Question # 23

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

Question # 24

Which of the following forces is responsible for SHM

Question # 25

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

Question # 26

SHM is type of ______ motion

Question # 27

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

Question # 28

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

Question # 29

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

Question # 30

In SHM, the acceleration is ______ when velocity is _____:

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 When a mass attached to a spring begins to move left or right from the equilibrium position, its P.E.:
A. Increases
B. Decreases
C. Remains constant
D. None of these
2 If a given spring of spring constant k is cut into two indentical segments, the spring constant of each segment is:
A. k/2
B. 2 k
C. 4 k
D. None of these
3 The displacement of body executing SHM is
A. xocoswt
B. xosinwt
C. xosin2wt
D. Both A, B
4 The string of a simple pendulum should be:
A. Heavy
B. Extensible
C. In-extensible
D. None of these
5 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
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 graph showing the variation of displacement with time is a:
A. Sine curve
B. Straight line
C. Parabola
D. None of these
8 The unit of spring constant is:
A. J-sec
B. Metre
C. Nm-1
D. None of these
9 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:
A. 1.5 sec
B. 2.0 sec
C. 2.3 sec
D. 2.5 sec
10 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

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