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

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

Question # 2

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

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 wave form of SHM is

Question # 5

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

Question # 6

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

Question # 7

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

Question # 8

The graph showing the variation of displacement with time is a

Question # 9

The S.I unit of frequency is

Question # 10

Hertz is unit of:

Question # 11

The unit of spring constant is:

Question # 12

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

Question # 13

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

Question # 14

Which of the following forces is responsible for SHM

Question # 15

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

Question # 16

Acceleration of body executing SHM is always directed towards

Question # 17

The restoring force is always directed towards:

Question # 18

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

Question # 19

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

Question # 20

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

Question # 21

The acceleration of body executing SHM is directly proportional to

Question # 22

When a body is vibrating, the displacement from mean position

Question # 23

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 # 24

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

Question # 25

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

Question # 26

Which one of the following is an example of SHM

Question # 27

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

Question # 28

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

Question # 29

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

Question # 30

The time taken to complete one vibration is called:

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 If the waves produced in a microwave oven are of wave-length 12 cm, then their frequency will be:
A. 2500 MHz
B. 0.25 MHz
C. 2500 KHz
D. None of these
2 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
3 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
4 The graph showing the variation of displacement with time is a:
A. Sine curve
B. Straight line
C. Parabola
D. None of these
5 An angle of 180° in circular motion is equivalent to ______ in SHM.
A. Half the vibration
B. One vibration
C. 3/4th of a vibration
D. None of these
6 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
7 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
8 The SI unit of spring constant is identical with that of
A. Force
B. Surface tension
C. Pressure
D. Loudness
9 Amplitude in SHM is equivalent to ______ in circular motion
A. Diameter
B. Radius
C. Circumference
D. None of these
10 The graph showing the variation of displacement with time is a
A. Sine curve
B. Straight line
C. Parabola
D. None of these

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