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

Question # 1

There is no net transfer of energy by particle of medium in

Longitudinal wave A
Transverse wave B
Progressive wave C
Stationary wave D

Question # 2

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 # 3

In stationary waves

Energy is uniformly distributed A
Energy is minimum at nodes and maximum at antinodes B
Energy is maximum at nodes and minimum at antidotes C
Alternating maximum and minimum energy producing at nodes and antinodes D

Question # 4

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

Wave number A
Frequency B
Wavelength C
Time period D

Question # 5

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 # 6

When a body is pulled away from its rest or equilibrium position and then released, the body oscillates due to

applied force A
momentum B
restoring force C
none of them D

Question # 7

Which one of the following could be the frequency of ultraviolet radiation?

1.0 x 10⁶Hz A
1.0 x 10⁹Hz B
1.0 x 10¹²Hz C
1.0 x 10¹⁵Hz D

Question # 8

The total energy of spring mass system is

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

Question # 9

A swing has

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

Question # 10

When temperature increase, the frequency of a tuning fork

Increases A
Decreases B
Remains same C
Increase or decreases depending on the material D

Question # 11

Shock absorber of the car is an example of

resonance A
forced oscillations B
interference C
damped oscillations D

Question # 12

Which one of the following elasticizes is possessed by fluids:

Young's elastic modulus (length) A
Bulk elastic modulus (volume) B
Modulus of rigidity (shape) C
None of these D

Question # 13

Which of the following is an example of a S.H.M?

motion of a projectile A
motion of a train along a circular path B
motion of swing C
electrons revolving sound the nucleus D

Question # 14

When a wave is travels from one place to another, it transfers:

Matter A
Energy B
Momentum C
Both B and C D

Question # 15

Two sound waves of slightly different frequencies propagating in the same direction produce beats due to

Interference A
Diffraction B
Polarization C
Refraction D

Question # 16

At a certain instant a stationary transverse wave is found to have maximum kinetic energy. The appearance of string of that instant is

Sinusoidal shape with amplitude A/3 A
Sinusoidal shape with amplitude A/2 B
Sinusoidal shape with amplitude A C
Straight line D

Question # 17

The distance covered by the wave in one second is:

Wave number A
Wave length B
Frequency C
Wave speed D

Question # 18

Angular frequency 'w' is basically a characteristics of

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

Question # 19

The bob of a simple pendulum is suspended by

string A
heavy inextensible string B
light extensible string C
light inextensible string D

Question # 20

When a mass 'm' is pulled slowly, the spring stretches by an amount x_o, then the work done will be

W=Kx_o A
W=1/2Kx_o B
W=1/2Kx²_o C
W=4Kx_o D

Question # 21

The waves produced in a microwave oven have frequency

2450 Hz A
2450 K Hz B
2450 M Hz C
2450 G Hz D

Question # 22

In the formula for finding the speed of waves in the spring, unit of m in SIn units is:

kg A
kg-meter B
kg/meter C
Meter/kg D

Question # 23

Energy is not carried by

Transverse progressive waves A
Longitudinal vibration B
Stationary waves C
Electromagnetic D

Question # 24

A heavily damped system has a fairly

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

Question # 25

The time period of pendulums of different lengths would be

same A
different B
both of them C
none of them D

Question # 26

The loudness and pitch of a sound note depends on

Intensity and velocity A
Frequency and velocity B
Intensity and frequency C
Frequency and number of harmonic D

Question # 27

The expression for restoring force is

F=ma A
F=kx B
F= -kx C
Kx=ma D

Question # 28

The wave form of S.H.M will be

square wave A
sine wave B
rectified wave C
saw-tooth wave D

Question # 29

The velocity of sound is greatest in

Water A
Air B
Vacuum C
Metal D

Question # 30

The characteristic of a body executing S.H.M is that its acceleration is

inversely proportional to displacement A
directly proportional to displacement B
independent of displacement C
equal to zero D

Sr.#	Question	Answer
1	The vibrations of factory floor caused by the running of heavy machinery is an example of	A. free vibration B. natural vibrations C. forced vibrations D. all of them
2	Which one of the following wave motions is transverse:	A. Wave motion produced in water when a piece of stone is thrown into it B. Pulling of weight hanging vertically with a spiral spring C. Both of these D. None of these
3	The distance covered by the wave in one second is:	A. Wave number B. Wave length C. Frequency D. Wave speed
4	Which of the following is not mechanical wave?	A. Sound wave B. Light wave C. wave produced in spring D. None of them
5	A body is executing free vibrations when it oscilates	A. with the interference of an external force B. without the interference of an external force C. with the interference of an internal force D. none of them
6	Which of the following is an example of a S.H.M?	A. motion of a projectile B. motion of a train along a circular path C. motion of swing D. electrons revolving sound the nucleus
7	Which one is not produced by sound waves in air?	A. Polarization B. Diffraction C. Refraction D. Reflection
8	If the length of a simple pendulum is 0.25 m its time period would be	A. 1.0 s B. 2.0 s C. 3.0 s D. 4.0 s
9	When a wave is travels from one place to another, it transfers:	A. Matter B. Energy C. Momentum D. Both B and C
10	An object undergoes S.H.M has maximum acceleration when its displacement form the means position	A. maximum B. zero C. half of the maximum value D. one third of the maximum value

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ECAT Pre General Science Physics Chapter 8 MCQ Test With Answer

MCQ's Test For ECAT Pre General Science Physics Chapter 8 Waves

ECAT Pre General Science Physics Chapter 8 Waves

There is no net transfer of energy by particle of medium in

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

In stationary waves

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

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

When a body is pulled away from its rest or equilibrium position and then released, the body oscillates due to

Which one of the following could be the frequency of ultraviolet radiation?

The total energy of spring mass system is

A swing has

When temperature increase, the frequency of a tuning fork

Shock absorber of the car is an example of

Which one of the following elasticizes is possessed by fluids:

Which of the following is an example of a S.H.M?

When a wave is travels from one place to another, it transfers:

Two sound waves of slightly different frequencies propagating in the same direction produce beats due to

At a certain instant a stationary transverse wave is found to have maximum kinetic energy. The appearance of string of that instant is

The distance covered by the wave in one second is:

Angular frequency 'w' is basically a characteristics of

The bob of a simple pendulum is suspended by

When a mass 'm' is pulled slowly, the spring stretches by an amount xo, then the work done will be

The waves produced in a microwave oven have frequency

In the formula for finding the speed of waves in the spring, unit of m in SIn units is:

Energy is not carried by

A heavily damped system has a fairly

The time period of pendulums of different lengths would be

The loudness and pitch of a sound note depends on

The expression for restoring force is

The wave form of S.H.M will be

The velocity of sound is greatest in

The characteristic of a body executing S.H.M is that its acceleration is

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When a mass 'm' is pulled slowly, the spring stretches by an amount x_o, then the work done will be