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MDCAT Physics Waves Test Online

Malik TahirLast Updated: May 26, 2025

Physics Waves MCQS Online Test

MDCAT Physics Waves Chapter Online Test

Total Questions:	94
Time Allowed:	40 Minutes
Total Marks:	94
How to Attempt Test:	Please choose the right Option in MCQ-type question.
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Physics Waves Chapter Online Test

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Page 1 of 4

Physics

1. Waves transmit _________ from one place to another

Mass

None of these

Both

Energy

2. In a seconds pendulum, mass of the bob is 30 gm. If it is replaced by 90 gm mass. Then its time period will be

3 s

4 s

1 s

2 s

3. Which of the following changes at an antinode is a stationary wave?

Density only

Pressure only

Both pressure and density

Neither pressure nor density

4. The human ear is most sensitive in the frequency range of:

5,000 to 11,000 Hz

4,000 to 8,000 Hz

2,000 to 4,000 Hz

3,000 to 6,000 Hz

5. The waves that require a material medium for their propagation are called

Mechanical waves

Electromagnetic waves

Carrier waves

Matter waves

6. Which one of the following instances are the waves plane-polarized?

Ultra-violet rays

Visible light

Infra-red radiation

Gamma rays

7. Ultra Violet rays differ X rays in that ultra violet rays

Cannot be diffracted

Do not affect photographic plate

Have a lower frequency

Cannot be polarized

8. A spring-mass system oscillates with a frequency v, if it is taken in an elevator slowly accelerating upward, the frequency will

Decrease

Become zero

Increase

Remains same

9. Maximum acceleration of an object in simple harmonic motion is 24 m/s² and maximum velocity is 16 m/sec. Then amplitude of SHM is

3/32 m

2/3 m

3/2 m

32/3 m

10. Sound waves in air always

Electromagnetic

Longitudinal

Stationary

Transverse

11. What sort of waves exhibit the Doppler effect?

All of these

Light waves

Sound waves

Water waves

12. The process whereby energy is dissipated from the oscillating system is called

Oscillation

Damping

Resonance

None of these

13. The points at which the distance separated by λ, 2λ, 3λ, ........ are

Sometimes in phase

In phase

Out of phase

None of these

14. When two waves with same frequency and constant phase difference interfere.

There is a gain of energy

The energy is redistributed and the distribution remains constant with time

The energy is redistributed and the distribution changes with time

There is a loss of energy

15. A particle executes SHM. The graph of its velocity as a function of displacement is

An ellipse

A hyperbola

A straight line

A circle

16. Which phenomena can be applied to estimate the velocity of star with respect to earth?

Doppler effect

All of these

Beats phenomena

Interference of waves

17. The response of the human ear to the loudness of sound is _________ in nature:

Logarithmic

Hyperbolic

Exponential

Linear

18. Speed of sound in Water at 20°C is:

1214 ms¯¹

1483 ms¯¹

1567 ms¯¹

1343 ms¯¹

19. If the period of oscillation of mass m suspended from a spring is one second, then the period of 4 m will be:

¼ sec

½ sec

2 sec

4 sec

20. Waves disturbances may also come in a concentrated bundles like stock waves from an airplane flying at:

Extra supersonic speed

Supersonic speed

Sonic speed

None of these

21. Velocity of sound in vacuum (in m/s) is

156

1000

330

22. The beats frequency (sensible) for a human car is

262Hz

256Hz

42Hz

7Hz

23. Energy is not carried by

Electromagnetic waves

Transverse progressive waves

Longitudinal vibration

Stationary waves

24. The velocity of sound in air depends upon

Wavelength of sound

Density and elasticity of gas

Pressure

Amplitude and frequency of sound

25. The distance between any two consecutive crests or troughs is called

Wave length

Phase difference

Period

Frequency

Page 2 of 4

26. A mass m attached to a spring oscillate every 2 sec. If the mass increases by 2 kg, then time period increases by 1 sec. The initial mass of the body is:

1.6 kg

3.2 kg

9.6 kg

12.6 kg

27. When two identical traveling waves are superimposed, the velocity of the resultant wave

Decreases

Increases

Becomes zero

Remains unchanged

28. The loudness and pitch of a sound note depends on

Frequency and velocity

Intensity and frequency

Intensity and velocity

Frequency and number of harmonic

29. The length of the second’s pendulum on the surface of Earth is 1m. Its length on the surface of moon, where g is 1/6th the value of g on the surface of Earth, is:

1/6 m

1/36 m

6 m

36 m

30. ‘y’ is the ratio molar specific heat at constant pressure to the molar specific heat at constant volume and has value

1.40

1.56

1.35

1.26

31. For production of beats the two sources must have

Different frequencies, same amplitude and same phase

Different frequencies and same amplitude

Different frequencies

Different frequencies and same phase

32. Beats are the results of

Destructive interference

Polarization

Diffraction of sound waves

Constrictive and destructive interference

33. The tension in the string of a simple pendulum is

Maximum in the extreme position

None of these

Constant

Zero in the mean position

34. In a progressive wave, the distance between two consecutive crests is

2 λ

λ/2

3/2 λ

35. The distance between node and anti-node is

2λ

λ/4

λ/2

36. The length of a spring is ‘α’ when a force of 4N is applied on it. The length is β when 5N force is applied. Then the length of spring when 9N force is applied is

5 β – 4 α

β – α

9 (β – α)

5α – 4β

37. In case of a vibrating Pendulum, if the mass of the pendulum is doubled then its time period

Become one fourth

Becomes double

Becomes one half

Remains same

38. Applications of the results of scientific studies in the designs of buildings etc. is called:

Wave mechanics

Statics

Acoustics

Optics

39. The velocity of sound in air not affected by changes in:

Moisture contents in air

The atmospheric pressure

The composition of air

Temperature of air

40. If mass attached to a spring increases, then its time period

Becomes Zero

Remains constant

Decreases

Increases

41. A system under going force vibrations is known as

None

Vibration harmonic oscillator

Driven harmonic oscillator

Frequency harmonic oscillator

42. One spring has force constant 200 Nm¯¹, another has force constant 500 Nm¯¹. If they are joined in series, the force constant will be nearest to

300 Nm¯¹

100 Nm¯¹

700 Nm¯¹

143 Nm¯¹

43. The ratio of velocity of sound in air at 4 atm pressure and that at 1 atm pressure would be

2 : 1

4 : 1

1 : 4

1 : 2

44. The distance between two consecutive crests or trough is called

None of these

Wavelength

Amplitude

Frequency

45. A pendulum suspended from the ceiling of a train has a period T when the train is at rest. When the train is accelerating with a uniform acceleration, the period of oscillation will

Increase

Become infinite

Remain unaffected

Decrease

46. Fidelity refers to

Reproduction of original sound

Reproduction of original image

Reproduction of music

Reproduction of a CD from original copy

47. Which one is not produce by sound waves in air?

Polarization

Refraction

Diffraction

Reflection

48. If is possible to recognize a person by hearing his voice even if he is hidden behind a solid wall. This is due to the fact that his voice.

Has a definite quality

Has a definite capacity

Can penetrate the wall

Has a definite pitch

49. A sine wave is represented by Q. the distance between the two particles having same maximum displacement is

λ/2

2λ

λ/4

50. Sound waves do not travel in vacuum because

They do not have enough energy

They are stationary waves

They require material medium for propagation

They are transverse waves

Page 3 of 4

51. A body with frequency f would complete one vibration in

F seconds

1/f seconds

1/T seconds

1 second

52. Through which character we can distinguish the light waves from sound waves

Reflection

Refraction

Interference

Polarization

53. In vibratory motion which parameter remains constant?

Total Energy

P.E. Energy

K.E. Energy

Angular Momentum

54. In simple harmonic motion,

The acceleration of the vibrating particle is ahead of displacement by a phase of π

The velocity and displacement of the vibrating particle are in the same phase

The velocity of the vibrating particle is ahead in phase of the displacement by and angle π

The velocity and acceleration of the vibrating particle are in the same phase

55. The speed of sound in a medium depends on

The elastic property but not on the inertia property

The inertia property but not on the elastic property

The elastic property as well as the inertia property

Neither the elastic property nor the inertia property

56. The distance between node and antinode is

λ/2

λ/4

2λ

57. If the magnitude of displacement is numerically equal to that of acceleration, then the time period is

π second

1 second

4π second

2π second

58. To make the frequency double of a spring oscillator, we have to:

Reduce the mass to one fourth

Quadruple the mass

Double the mass

Half the mass

59. Which one of the following statements is true for the speed v and the acceleration α of a particle executing simple harmonic motion?

When v is zero, α is zero

When v is maximum, α is zero

Value of α is zero, whatever may be the value of v

When v is maximum, α is maximum

60. The velocity of sound is greatest in

Water

Air

Vacuum

Metal

61. The Doppler effect is produced if

The source is in motion

The detector is in motion

Both the above

None of these

62. It is possible to distinguish between transverse and longitudinal waves form the property of

Polarization

Refraction

Interference

Diffraction

63. Two particles A and B of equal masses are suspended from two mass less springs of spring constants k₁ and k₂ respectively. If the maximum velocities, during oscillation, are equal, the ratio of amplitudes of A and B is:

k₂/k₁

√k₁/k₂

k₁/k₂

√k₂/k₁

64. A particle executes a simple harmonic motion of time period T. Find the time taken by the particle to go directly from its mean position to half the amplitude

T/12

T/8

T/4

T/2

65. The total energy of a particle, executing simple harmonic moron is

∞ x²

∞√x

Independent of x

∞ x

66. One wavelength is the distance covered in a time is called

Oscillation Time

Time period

Wave

Reverberation

67. Velocity of sound in vacuum is

Zero

320 ms-1

224 ms-1

332 ms-1

68. For motion of a simple pendulum to be simple harmonic

Amplitude of motion will be very large

Amplitude of motion will be every small

Independent of amplitude of motion

None of these

69. When temperature increases, the frequency of a tuning fork

Remains same

Increases or decreases depending on the material

Decreases

Increases

70. A sound source is moving towards stationary listener with 1/10th of the speed of sound. The ratio of apparent to real frequency is

(11/10)²

11/10

(9/10)²

10/9

71. A wave is which the displacement of the wave travel perpendicular to the direction of propagation of waves is called

Longitudinal waves

None of these

Progressive wave

Transverse wave

72. Decibel is unit of

Intensity of light

x-ray radiation capacity

Sound loudness

Energy of radiation

73. An oscillating mass-spring system generates

Mechanical waves

Progressive waves

Periodic waves

None of these

74. If two waves of amplitude ‘A’ produce a resultant wave of amplitude A, then the phase difference between them will be

60°

90°

120°

180°

75. What is frequency of radio waves transmitted by a station, if the wavelength of these waves is 300 m?

1 GHz

1 MHz

100000 Hz

10 Hz

Page 4 of 4

76. The restoring force of S.H.M. is maximum when particle:

At rest

Displacement is maximum

Half way between them

Crossing mean position

77. Reflection of radar waves from the aero planes is an example of

Resonance

Beat phenomenon

Interference

Doppler effect

78. Doppler-effect applies to

Sound wave only

Both sound and light waves

Light wave only

Neither sound nor light wave

79. With the propagation of a longitudinal wave through a material medium, the quantities transmitted in the propagation direction are

Energy and linear momentum

Energy, momentum and mass

Energy and mass

Energy

80. In stationary waves

Energy is minimum at nodes and maximum at antinodes

Alternating maximum and minimum energy producing at nodes and antinodes

Energy is uniformly distributed

Energy is minimum at nodes and maximum at antidotes

81. The waves moving from a sitar to a listener in air are

Longitudinal progressive

Transverse stationary

Transverse progressive

Longitudinal stationary

82. If two waves of length 50 cm and 51 cm produced 12 beats per second, the velocity of sound is

331 m/s

360 m/s

306 m/s

340 m/s

83. When a body moves in a circle, its projection performs what type of motion?

Angular Motion

Rectilinear Motion

Simple Harmonic Motion

Circular Motion

84. Silence zone takes place due to

Destructive interference

Beats

Constructive interference

Resonance

85. When a stationary wave is formed then its frequency is

Same as that of the individual waves

√2 that of the individual waves

Twice that of the individual waves

Half that of the individual waves

86. In a garden, a boy is swinging in the standing position. How will the time period of the swing be affected if the boy sits down on the swing?

Time period will decrease

Time period will not change

Time period will depend on the weight of the boy.

Time period will increase

87. In stationary waves

Alternating maximum and minimum energy producing at nodes and antinodes

Energy is maximum at nodes and minimum at antidotes

Energy is uniformly distributed

Energy is minimum at nodes and maximum at antinodes

88. When the source of sound moves away form a stationary listener then _________ occurs.

No apparent change in frequency

An apparent decrease in wavelength

An apparent decrease in frequency

An apparent increase in frequency

89. The gases have a

Zero elastic modulus

Large elastic modulus

Smaller elastic modules

None of these

90. A pendulum clock that keeps correct time on the Earth is taken to the Moon. It will run

√6 times faster

6 times faster

√6 times slower

At correct rate

91. In case of a forced vibration, the resonance becomes very sharp when the

Restoring force is small

Quality factor is small

Applied periodic force is small

Damping force is small

92. To hear a clear echo, the reflecting surface must be at a minimum distance of

16.5 m

33 m

10 m

66 m

93. Two springs of spring constants k₁ and k₂ are joined in series. The effective spring constant of the combination is given by

(k₁+k₂)/2

√k₁k₂

k₁ k₂/( k₁+k₂)

k₁+k₂

94. When a gas is heated at constant pressure, its volume is increased and its density

Increased

Increased rapidly

Decreased

None of these

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Malik TahirLast Updated: May 26, 2025

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5 Comments

Karshma says:

December 17, 2021 at 10:42 am

I am a medical student

Talha Maqsood says:

August 20, 2021 at 12:07 pm

Sir some of your own answer are wrong please correct them

Rana Zunair Mehdi says:

July 21, 2016 at 5:12 pm

Excellent website but there is problem in the answer of a mcqs of physics sample peper no.22. mcqs of “trough” the answer is above the equilibrium position but real answer from tectbook is below the equilibrium position. thanks

1. Talha Maqsood says:
  
  August 20, 2021 at 12:08 pm
  
  Yes bro I have same problem
  
Rana Zunair Mehdi says:

July 21, 2016 at 5:06 pm

Excellent website for preparation of MCAT as it includes all the mcqs from all books . help a lot to obtain higher marks. suuccessfull website

MDCAT Physics Waves Test Online

Physics Waves MCQS Online Test

MDCAT Physics Waves Chapter Online Test

Physics Waves Chapter Online Test

Physics

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Physics Waves MCQS Online Test

MDCAT Physics Waves Chapter Online Test

Physics Waves Chapter Online Test

Physics

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