ECAT Pre General Science Chapter 7 online mcq test with answers for Physics chapter 7 (Oscillation)

Question # 1

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

250 N m^-1 A
25 N m^-1 B
2.5 N m^-1 C
None of these D

Question # 2

The unit of spring constant is

J-sec A
Metre B
Nm^-1 C
None of these D

Question # 3

A particle moving uniformly along circle its projection along diameter performs

Linear motion A
Projectile motion B
SHM C
Rotatory motion D

Question # 4

Hertz is unit of:

Time period A
Displacement B
Amplitude C
Frequency D

Question # 5

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

Circular motion, circumference A
Vibrator, chord B
SHM, diameter C
SHM, circumference D

Question # 6

The graph showing the variation of displacement with time is a

Sine curve A
Straight line B
Parabola C
None of these D

Question # 7

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

k/2 A
2 k B
4 k C
None of these D

Question # 8

Velocity of particle executing SHM will be maximum at

Extreme position A
Mean position B
b/w mean and extreme C
None D

Question # 9

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

2500 MHz A
0.25 MHz B
2500 KHz C
None of these D

Question # 10

Acceleration of body executing SHM is always directed towards

Extreme position A
Mean position B
Along the direction of motion C
None D

Question # 11

In SHM, the acceleration is __ when velocity is _:

Zero, smallest A
Smallest, zero B
Zero, zero C
Zero, greatest D

Question # 12

A body with frequency would complete one vibration in:

f seconds A
1/f seconds B
1 second C
f²second D

Question # 13

Which one of the following is an example of SHM:

Motion in a plane A
Motion in a swing B
Motion in a car C
None of these D

Question # 14

The restoring force is and opposite tot he applied force within

Equal, Elastic limit A
Different, The walls of the laboratory B
Different, Elastic limit C
None of these D

Question # 15

In vibrational motion(SHM)

P.E remains conserved A
Average K.E remain constant B
Neither P.E nor K.E remains constant C
Total energy remains constant D

Question # 16

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

Translatory motion A
Vibratory motion B
Rotatory motion C
None of these D

Question # 17

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

1 cm A
1 m B
10 mm C
None of these D

Question # 18

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

f A
2 f B
3 f C
1/2 f D

Question # 19

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

90° A
180° B
45° C
360° D

Question # 20

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

Circular motion, circumference A
Vibratory, chord B
SHM, diameter C
SHM, circumference D

Question # 21

The acceleration of body executing SHM is directly proportional to

Applied force A
Amplitude B
Displacement C
Frictional force D

Question # 22

The displacement of body executing SHM is

x_ocoswt A
x_osinwt B
x_osin²wt C
Both A, B D

Question # 23

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

Infinity A
Maximum B
Zero C
Minimum D

Question # 24

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

Force A
Acceleration B
Velocity C
Displacement D

Question # 25

The string of a simple pendulum should be:

Heavy A
Extensible B
In-extensible C
None of these D

Question # 26

The restoring force is _ and opposite to the applied force within __,:

Equal, elastic limit A
Different, the walls of the laboratory B
Different, elastic limit C
None of these D

Question # 27

The body oscillates due to _ accelerates and overshoots the rest position due to__,:

Applied force, inertial A
Restoring force, friction B
Frictional force, inertial C
Restoring force, inertial D

Question # 28

Amplitude is the displacement of the vibrating body from:

One extreme position to the other extreme position A
Mean position any one extreme position B
Both A and B are correct C
None of these D

Question # 29

Free oscillations are always produced by:

An applied force A
Gravitational force B
Restoring force and inertia C
Inertia only D

Question # 30

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

90° A
180° B
45° C
360° D

Sr.#	Question	Answer
1	A body with frequency would complete one vibration in:	A. f seconds B. 1/f seconds C. 1 second D. f²second
2	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
3	A spring of constant k = 0.4 N m^-1_{is 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
4	If mass of 10 gm is suspended from a spring of K=0.8 Nm^-1then the extension will be:	A. 10 cm B. 1 m C. 10 mn D. None of these
5	The maximum distance of body from mean position when body is executing SHM is called	A. Time period B. Displacement C. Amplitude D. Frequency
6	Free oscillations are always produced by:	A. An applied force B. Gravitational force C. Restoring force and inertia D. Inertia only
7	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
8	Acceleration of body executing SHM is always directed towards	A. Extreme position B. Mean position C. Along the direction of motion D. None
9	When quarter of a circle is completed, the phase of vibration is:	A. 90° B. 180° C. 45° D. 360°
10	The displacement of body executing SHM is	A. x_ocoswt B. x_osinwt C. x_osin²wt D. Both A, B

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ECAT Pre General Science Physics Chapter 7 MCQ Test With Answer

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

ECAT Pre General Science Physics Chapter 7 Oscillations

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

The unit of spring constant is

A particle moving uniformly along circle its projection along diameter performs

Hertz is unit of:

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

The graph showing the variation of displacement with time is a

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

Velocity of particle executing SHM will be maximum at

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

Acceleration of body executing SHM is always directed towards

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

A body with frequency would complete one vibration in:

Which one of the following is an example of SHM:

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

In vibrational motion(SHM)

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

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

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

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

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

The acceleration of body executing SHM is directly proportional to

The displacement of body executing SHM is

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

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

The string of a simple pendulum should be:

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

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

Amplitude is the displacement of the vibrating body from:

Free oscillations are always produced by:

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

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