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

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

Question # 2

The restoring force is always directed towards:

Question # 3

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

Question # 4

Amplitude in SHM is equivalent to ______ in circular motion:

Question # 5

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

Question # 6

When a body is vibrating, the displacement from mean position

Question # 7

The SI unit of spring constant is identical with that of

Question # 8

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

Question # 9

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

Question # 10

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

Question # 11

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

Question # 12

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

Question # 13

Which of the following quantity for particle executing SHM is non-zero at mean position

Question # 14

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

Question # 15

A body with frequency of would complete one vibration in:

Question # 16

Acceleration of body executing SHM is always directed towards

Question # 17

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

Question # 18

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

Question # 19

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

Question # 20

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

Question # 21

The time period of a simple pendulum is independent of its:

Question # 22

In vibrational motion(SHM)

Question # 23

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

Question # 24

Hertz is unit of:

Question # 25

The graph showing the variation of displacement with time is a

Question # 26

The unit of spring constant is:

Question # 27

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

Question # 28

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

Question # 29

SHM is type of ______ motion

Question # 30

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

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 The string of a simple pendulum should be:
A. Heavy
B. Extensible
C. In-extensible
D. None of these
2 Velocity of particle executing SHM will be maximum at
A. Extreme position
B. Mean position
C. b/w mean and extreme
D. None
3 Second's pendulum is the pendulum whose time period is:
A. 1 second
B. 2 second
C. 3 second
D. None of these
4 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
5 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
6 The unit of spring constant is:
A. J-sec
B. Metre
C. Nm-1
D. None of these
7 A particle moving uniformly along circle its projection along diameter performs
A. Linear motion
B. Projectile motion
C. SHM
D. Rotatory motion
8 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:
A. 4 gms
B. 0.4 gms
C. 40 gms
D. None of these
9 The number of vibration in two seconds can be expressed as
______ of frequency of vibration is f:
A. f
B. 2 f
C. 3 f
D. 1/2 f
10 The S.I unit of frequency is
A. Vibrations s-2
B. Ms-1
C. Hertz
D. s-1

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