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

Question # 1

The displacement of body executing SHM is

x_ocoswt A
x_osinwt B
x_osin²wt C
Both A, B D

Question # 2

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

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

Question # 3

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

Force A
Acceleration B
Velocity C
Displacement D

Question # 4

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

1 second A
2 second B
3 second C
None of these D

Question # 5

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

Applied force, Inertia A
Restoring force, Friction B
Frictional force, Inertia C
Restoring force, Inertia D

Question # 6

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

Velocity A
Period B
Mass C
Acceleration D

Question # 7

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

Half the vibration A
One vibration B
3/4th of a vibration C
None of these D

Question # 8

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

Time period A
Displacement B
Amplitude C
Frequency D

Question # 9

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 # 10

A particle moving uniformly along circle its projection along diameter performs

Linear motion A
Projectile motion B
SHM C
Rotatory motion D

Question # 11

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 # 12

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

Increases A
Decreases B
Remains constant C
None of these D

Question # 13

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 # 14

The graph showing the variation of displacement with time is a

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

Question # 15

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

Length A
Mass B
Value of g C
Both A and B D

Question # 16

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:

4 gms A
0.4 gm B
40 gms C
None of these D

Question # 17

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

90° A
180° B
45° C
360° D

Question # 18

When a body is vibrating, the displacement from mean position

Increases with time A
Decreases with time B
Changes with time C
None of these D

Question # 19

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

f/2 A
2f B
f C
4f D

Question # 20

A body with frequency would complete one vibration in:

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

Question # 21

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

Infinity A
Maximum B
Zero C
Minimum D

Question # 22

Amplitude in SHM is equivalent to ______ in circular motion

Diameter A
Radius B
Circumference C
None of these D

Question # 23

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

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

Question # 24

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 # 25

The acceleration of body executing SHM is directly proportional to

Applied force A
Amplitude B
Displacement C
Frictional force D

Question # 26

Hertz is unit of:

Time period A
Displacement B
Amplitude C
Frequency D

Question # 27

Acceleration of body executing SHM is always directed towards

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

Question # 28

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 # 29

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 # 30

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:

1.5 sec A
2.0 sec B
2.3 sec C
2.5 sec D

Sr.#	Question	Answer
1	Hertz is unit of:	A. Time period B. Displacement C. Amplitude D. Frequency
2	In SHM, there is always a constant ratio between displacement if body and its:	A. Velocity B. Period C. Mass D. Acceleration
3	The restoring force is ______ and opposite tot he applied force within ______	A. Equal, Elastic limit B. Different, The walls of the laboratory C. Different, Elastic limit D. None of these
4	Velocity of particle executing SHM will be maximum at	A. Extreme position B. Mean position C. b/w mean and extreme D. None
5	Amplitude in SHM is equivalent to ______ in circular motion	A. Diameter B. Radius C. Circumference D. None of these
6	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
7	In SHM, the acceleration is ______ when velocity is _____:	A. Zero, smallest B. Smallest, zero C. Zero, zero D. Zero, greatest
8	Which of the following forces is responsible for SHM	A. Applied force B. Restoring force C. Fractional force D. Elastic force
9	The SI unit of spring constant is identical with that of	A. Force B. Surface tension C. Pressure D. Loudness
10	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:	A. 4 gms B. 0.4 gm C. 40 gms D. None of these

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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