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 restoring force is always directed towards:

Question # 2

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

Question # 3

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

Question # 4

An oscillating body oscillates due to:

Question # 5

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

Question # 6

Which one of the following is an example of SHM:

Question # 7

The acceleration of body executing SHM is directly proportional to

Question # 8

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

Question # 9

The unit of spring constant is

Question # 10

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 # 11

Free oscillations are always produced by:

Question # 12

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

Question # 13

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

Question # 14

Hertz is unit of:

Question # 15

The time taken to complete one vibration is called:

Question # 16

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

Question # 17

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

Question # 18

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

Question # 19

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 # 20

Vibratory motion is always under

Question # 21

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

Question # 22

SHM is type of ______ motion

Question # 23

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

Question # 24

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

Question # 25

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

Question # 26

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

Question # 27

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

Question # 28

Amplitude is the displacement of the vibrating body from:

Question # 29

In vibrational motion(SHM)

Question # 30

A particle moving uniformly along circle its projection along diameter performs

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 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
2 If a force of 0.05 N produces an elongation of 20 mm in a 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
3 Velocity of particle executing SHM will be maximum at
A. Extreme position
B. Mean position
C. b/w mean and extreme
D. None
4 Which one of the following is an example of SHM:
A. Motion in a plane
B. Motion in a swing
C. Motion in a car
D. None of these
5 Which of the following forces is responsible for SHM
A. Applied force
B. Restoring force
C. Fractional force
D. Elastic force
6 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
7 Hertz is unit of:
A. Time period
B. Displacement
C. Amplitude
D. Frequency
8 The unit of spring constant is:
A. J-sec
B. Metre
C. Nm-1
D. None of these
9 Which one of the following is an example of SHM
A. Motion in a plane
B. Motion in a swing
C. Motion in a car
D. None of these
10 The acceleration of body executing SHM is directly proportional to
A. Applied force
B. Amplitude
C. Displacement
D. Frictional force

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