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

The acceleration of body executing SHM is directly proportional to

Question # 2

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

Question # 3

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

Question # 4

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

Question # 5

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

Question # 6

SHM is type of ______ motion

Question # 7

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

Question # 8

Which one of the following is an example of SHM

Question # 9

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

Question # 10

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

Question # 11

An object undergoes SHM. Its maximum equilibrium positions:

Question # 12

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

Question # 13

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 # 14

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

Question # 15

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 # 16

The time taken to complete one vibration is called:

Question # 17

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

Question # 18

An oscillating body oscillates due to:

Question # 19

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

Question # 20

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

Question # 21

Which of the following forces is responsible for SHM

Question # 22

If a mass of 10 gm is suspended from a spring of k = 9.8 Nm-1, then the extension will be:

Question # 23

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

Question # 24

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

Question # 25

The SI unit of spring constant is identical with that of

Question # 26

Which one of the following is an example of SHM:

Question # 27

The displacement of body executing SHM is

Question # 28

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

Question # 29

Acceleration of body executing SHM is always directed towards

Question # 30

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

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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 A particle moving uniformly along circle its projection along diameter performs
A. Linear motion
B. Projectile motion
C. SHM
D. Rotatory motion
3 In SHM, the acceleration is ______ when velocity is _____:
A. Zero, smallest
B. Smallest, zero
C. Zero, zero
D. Zero, greatest
4 When a body is vibrating, the displacement from mean position:
A. Increases with time
B. Decreases with time
C. Changes with time
D. None of these
5 When quarter of a cycle is completed, the phase of vibration is:
A. 90°
B. 180°
C. 45°
D. 360°
6 The restoring force is _____ and opposite to the applied force within ______,:
A. Equal, elastic limit
B. Different, the walls of the laboratory
C. Different, elastic limit
D. None of these
7 If time period of a pendulum is doubled by increasing its length, then its frequency will
A. Also be doubled
B. Become half
C. Become one fourth
D. Becomes four times
8 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
9 Free oscillations are always produced by:
A. An applied force
B. Gravitational force
C. Restoring force and inertia
D. Inertia only
10 Amplitude in SHM is equivalent to_____ in circular motion:
A. Diameter
B. Radius
C. Circumference
D. None of these

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