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

SHM is type of ______ motion

Question # 2

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

Question # 3

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

Question # 4

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 # 5

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

Question # 6

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

Question # 7

When a body is vibrating, the displacement from mean position

Question # 8

Free oscillations are always produced by:

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

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

Question # 11

The time taken to complete one vibration is called:

Question # 12

The restoring force is ______ and opposite tot he applied force within ______

Question # 13

Velocity of particle executing SHM will be maximum at

Question # 14

A body with frequency of would complete one vibration in:

Question # 15

The unit of spring constant is

Question # 16

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 # 17

An object undergoes SHM. Its maximum equilibrium positions:

Question # 18

The graph showing the variation of displacement with time is a

Question # 19

Amplitude in SHM is equivalent to ______ in circular motion

Question # 20

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

Question # 21

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

Question # 22

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

Question # 23

The S.I unit of frequency is

Question # 24

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

Question # 25

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

Question # 26

The wave form of SHM is

Question # 27

An oscillating body oscillates due to:

Question # 28

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

Question # 29

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

Question # 30

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

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 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
2 In SHM, the acceleration is ______ when velocity is _____:
A. Zero, smallest
B. Smallest, zero
C. Zero, zero
D. Zero, greatest
3 A body with frequency of would complete one vibration in:
A. f seconds
B. 1/f seconds
C. 1 second
D. f2second
4 Which of the following quantity for particle executing SHM is non-zero at mean position
A. Force
B. Acceleration
C. Velocity
D. Displacement
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 moving uniformly along circle its projection along diameter performs
A. Linear motion
B. Projectile motion
C. SHM
D. Rotatory motion
7 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
8 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
9 Amplitude in SHM is equivalent to ______ in circular motion:
A. Diameter
B. Radius
C. Circumference
D. None of these
10 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

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