ECAT Pre General Science Chapter 8 online mcq test with answers for Physics chapter 8 (Waves)

Online MCQ`s Test For Chapter 8 "ECAT Pre General Science Physics Chapter 8 Waves Online Test"

Try The MCQ`s Test For Chapter 8 "ECAT Pre General Science Physics Chapter 8 Waves Online Test"

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ECAT Pre General Science Physics Chapter 8 Waves Online Test

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Question # 1

In transverse waves, the individual particles of the medium move:

In circles A
Perpendicular to the direction of level B
Parallel to the direction of level C
None of these D

Question # 2

The vibratory motion of a body whose magnitude of acceleration is directly proportional to the magnitude of its displacement and is always directed towards the equilibrium position is called

rotatory motion A
motion under gravity B
angular motion C
simple harmonic motion D

Question # 3

In a resonance situation the amplitude of the motion may become extra ordinarily large, if

the driving force is large A
the driving force is zero B
the driving force may be feeble C
all of them D

Question # 4

If the length of second pendulum becomes four times then its time period will become

Four time A
Two times B
Six times C
Eight times D

Question # 5

The vibrations of factory floor caused by the running of heavy machinery is an example of

free vibration A
natural vibrations B
forced vibrations C
all of them D

Question # 6

The temperature at which the speed of sound becomes double as was at 27°C is

273°C A
0°C B
927°C C
1027°C D

Question # 7

The force which opposes the applied force producing the displacement in the spring is called

restoring force A
periodic force B
centripetal force C
resistive force D

Question # 8

If we increase the length of a simple pendulum four times, its time period will become

2 times A
3 times B
4 times C
6 times D

Question # 9

The instantaneous velocity of a body moving along a circle is directed

along the radius A
along the tangent B
away from the circle C
none of them D

Question # 10

The waves which propagate through the oscillations of material particles are known as:

Mechanical waves A
Electromagnetic waves B
Any of them C
None of them D

Question # 11

The velocity of sound in air depends upon

Density and elasticity of gas A
Pressure B
Wavelength C
Amplitude and frequency of sound D

Question # 12

Which of the following is not mechanical wave?

Sound wave A
Light wave B
wave produced in spring
C
None of them D

Question # 13

If F=0.04 N and X=4 cm then K=

1 Nm^-1 A
2 Nm^-1 B
3 Nm^-1 C
4 Nm^-1 D

Question # 14

The distance covered by the wave during one period is called its:

Wave number A
Frequency B
Wavelength C
Time period D

Question # 15

When a body moves to and fro motion, this type of motion is called

translatory motion A
circular motion B
oscillatory motion C
all of them D

Question # 16

The waves which propagate by the collision of material particles are known as

e.m. waves A
mechanical waves B
light waves C
microwaves D

Question # 17

Of the following, the option ______ reminds of longitudinal waves.

Sound waves A
Heat waves B
Electromagnetic waves C
Light waves D

Question # 18

Two sources of sound are said to be coherent if

The produce sounds of equal intensity A
They produce sounds of equal frequency B
They produce sound waves vibrating with the same phase C
They produce sound waves with zero or constant phase difference all instant of time D

Question # 19

A swing has

one natural frequency A
two natural frequencies B
three natural frequencies C
four natural frequencies D

Question # 20

A weakly damped system has fairly

sharp resonance curve A
flat resonance curve B
both of them C
none of them D

Question # 21

A wave, which transfer energy by moving away from the source of disturbance is called a

progressive wave A
travelling wave B
both of them C
none of them D

Question # 22

The total energy of spring mass system is

zero A
changing with time B
constant C
none of them D

Question # 23

The wave motion set up in any medium depends upon:

Elasticity A
Inertia B
Density C
All of these D

Question # 24

If a freely oscillating system is subjected to an external force, then

free vibrations will take place A
the body will move with its natural frequency B
forced vibrations will take place C
none of them D

Question # 25

While describing the motion of a simple pendulum, the frictional effects are

taken into account A
completely ignored B
partially ignored C
none of them D

Question # 26

Fluids can transmit:

Transverse wave A
Compressional wave B
Both of them C
None of them D

Question # 27

When the bob of simple pendulum is at mean position, its K.E will be

maximum A
minimum B
zero C
all of them D

Question # 28

Shock absorber of the car is an example of

resonance A
forced oscillations B
interference C
damped oscillations D

Question # 29

When a body is performing S.H.M., its acceleration is

inversely proportional to the displacement A
directly proportional to the applied force B
directly proportional to the amplitude C
directly proportional to the displacement but in opposite direction D

Question # 30

Angular frequency 'w' is basically a characteristics of

linear motion A
circular motion B
both of them C
none of them D

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ECAT Pre General Science Physics Chapter 8 MCQ Test With Answer for Physics chapter 8 (Waves)

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