ECAT Pre General Science Physics Chapter 7 Oscillations

MCQ's Test For ECAT Pre General Science Physics Chapter 7 Oscillations

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ECAT Pre General Science Physics Chapter 7 Oscillations

00:00
Question # 1

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

Question # 2

The string of a simple pendulum should be:

Question # 3

Which one of the following is an example of SHM:

Question # 4

Amplitude is the displacement of the vibrating body from:

Question # 5

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 # 6

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

Question # 7

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

Question # 8

Vibratory motion is always under

Question # 9

The restoring force is always directed towards:

Question # 10

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

Question # 11

The S.I unit of frequency is

Question # 12

The time taken to complete one vibration is called:

Question # 13

Second's pendulum is the pendulum whose time period is:

Question # 14

The unit of spring constant is:

Question # 15

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

Question # 16

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

Question # 17

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

Question # 18

A particle is moving along a circular path with uniform speed. Its projection will execute____along the____of the circle:

Question # 19

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

Question # 20

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 # 21

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

Question # 22

The displacement of body executing SHM is

Question # 23

Amplitude in SHM is equivalent to ______ in circular motion

Question # 24

The graph showing the variation of displacement with time is a

Question # 25

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 # 26

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

Question # 27

Amplitude in SHM is equivalent to_____ in circular motion:

Question # 28

A particle is moving along a circular path with uniform speed. Its projection will execute ___along the _____ of the circle:

Question # 29

Which of the following forces is responsible for SHM

Question # 30

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

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 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
2 The time period of a simple pendulum is independent of its:
A. Length
B. Mass
C. Value of g
D. Both A and B
3 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
4 A particle executes SHM with frequency. The frequency with which its K.E oscillates is
A. f/2
B. 2f
C. f
D. 4f
5 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:
A. 4 gms
B. 0.4 gm
C. 40 gms
D. None of these
6 The graph showing the variation of displacement with time is a:
A. Sine curve
B. Straight line
C. Parabola
D. None of these
7 The displacement of body executing SHM is
A. xocoswt
B. xosinwt
C. xosin2wt
D. Both A, B
8 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
9 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
10 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

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