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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. In stationary waves

Energy is maximum at nodes and minimum at antidotes

Alternating maximum and minimum energy producing at nodes and antinodes

Energy is minimum at nodes and maximum at antinodes

Energy is uniformly distributed

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

None of these

Progressive wave

Longitudinal waves

Transverse wave

3. 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

k₁+k₂

√k₁k₂

k₁ k₂/( k₁+k₂)

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

Decreased

Increased rapidly

None of these

Increased

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

Doppler effect

Interference of waves

Beats phenomena

All of these

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

An apparent decrease in frequency

No apparent change in frequency

An apparent increase in frequency

An apparent decrease in wavelength

7. 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 capacity

Has a definite quality

Has a definite pitch

Can penetrate the wall

8. The velocity of sound is greatest in

Vacuum

Metal

Air

Water

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

Gamma rays

Ultra-violet rays

Visible light

Infra-red radiation

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

Applied periodic force is small

Restoring force is small

Quality factor is small

Damping force is small

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

Remains constant

Increases

Becomes Zero

Decreases

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

1343 ms¯¹

1567 ms¯¹

1483 ms¯¹

1214 ms¯¹

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

180°

60°

90°

120°

14. 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

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

Twice that of the individual waves

√2 that of the individual waves

Half that of the individual waves

Same as that of the individual waves

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

Oscillation

Damping

None of these

Resonance

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

2,000 to 4,000 Hz

3,000 to 6,000 Hz

4,000 to 8,000 Hz

5,000 to 11,000 Hz

18. Waves transmit _________ from one place to another

None of these

Energy

Both

Mass

19. Sound waves do not travel in vacuum because

They do not have enough energy

They require material medium for propagation

They are stationary waves

They are transverse waves

20. Silence zone takes place due to

Constructive interference

Resonance

Destructive interference

Beats

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

Reverberation

Wave

Time period

Oscillation Time

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

Becomes zero

Decreases

Increases

Remains unchanged

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

The energy is redistributed and the distribution remains constant with time

There is a gain of energy

There is a loss of energy

The energy is redistributed and the distribution changes with time

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

Increases

Remains same

Decreases

Increases or decreases depending on the material

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

None of these

Maximum in the extreme position

Zero in the mean position

Constant

Page 2 of 4

26. 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:

6 m

36 m

1/36 m

1/6 m

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

Logarithmic

Linear

Exponential

Hyperbolic

28. The gases have a

Smaller elastic modules

Large elastic modulus

Zero elastic modulus

None of these

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

Displacement is maximum

Crossing mean position

At rest

Half way between them

30. What sort of waves exhibit the Doppler effect?

All of these

Water waves

Sound waves

Light waves

31. The speed of sound in a medium depends on

Neither the elastic property nor the inertia property

The elastic property as well as the inertia property

The elastic property but not on the inertia property

The inertia property but not on the elastic property

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

Frequency and velocity

Frequency and number of harmonic

Intensity and frequency

Intensity and velocity

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

A circle

An ellipse

A hyperbola

A straight line

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

1.40

1.26

1.56

1.35

35. 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

5α – 4β

5 β – 4 α

9 (β – α)

β – α

36. Fidelity refers to

Reproduction of original image

Reproduction of music

Reproduction of original sound

Reproduction of a CD from original copy

37. 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 maximum, α is maximum

When v is maximum, α is zero

When v is zero, α is zero

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

38. 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

1 s

4 s

2 s

3 s

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

Matter waves

Electromagnetic waves

Carrier waves

Mechanical waves

40. The distance between node and anti-node is

2λ

λ/4

λ/2

41. 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

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

4 sec

½ sec

¼ sec

2 sec

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

Become zero

Remains same

Decrease

Increase

44. In stationary waves

Energy is uniformly distributed

Alternating maximum and minimum energy producing at nodes and antinodes

Energy is minimum at nodes and maximum at antinodes

Energy is minimum at nodes and maximum at antidotes

45. Sound waves in air always

Transverse

Electromagnetic

Longitudinal

Stationary

46. 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/2

T/8

T/4

47. 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

(9/10)²

11/10

10/9

48. Energy is not carried by

Electromagnetic waves

Stationary waves

Transverse progressive waves

Longitudinal vibration

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

262Hz

7Hz

256Hz

42Hz

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

Wave length

Period

Phase difference

Frequency

Page 3 of 4

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

Both pressure and density

Neither pressure nor density

Density only

Pressure only

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

Become one fourth

Remains same

Becomes double

Becomes one half

53. 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

Decrease

Increase

Become infinite

Remain unaffected

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

Statics

Acoustics

Wave mechanics

Optics

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

Refraction

Diffraction

Reflection

Polarization

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

F seconds

1 second

1/f seconds

1/T seconds

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

Transverse stationary

Longitudinal stationary

Transverse progressive

Longitudinal progressive

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

2 λ

3/2 λ

λ/2

59. Doppler-effect applies to

Sound wave only

Neither sound nor light wave

Both sound and light waves

Light wave only

60. The velocity of sound in air depends upon

Wavelength of sound

Pressure

Amplitude and frequency of sound

Density and elasticity of gas

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

Amplitude

Wavelength

None of these

Frequency

62. The Doppler effect is produced if

The source is in motion

Both the above

None of these

The detector is in motion

63. The distance between node and antinode is

λ/2

λ/4

2λ

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

Independent of x

∞√x

∞ x²

∞ x

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

Cannot be diffracted

Cannot be polarized

Do not affect photographic plate

Have a lower frequency

66. Decibel is unit of

Energy of radiation

Intensity of light

x-ray radiation capacity

Sound loudness

67. 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

100 Nm¯¹

143 Nm¯¹

300 Nm¯¹

700 Nm¯¹

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

1 second

2π second

π second

4π second

69. For production of beats the two sources must have

Different frequencies

Different frequencies and same phase

Different frequencies, same amplitude and same phase

Different frequencies and same amplitude

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

330

1000

156

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

Sometimes in phase

In phase

None of these

Out of phase

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

√6 times slower

√6 times faster

At correct rate

6 times faster

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

Amplitude of motion will be very large

None of these

Independent of amplitude of motion

Amplitude of motion will be every small

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

The atmospheric pressure

The composition of air

Temperature of air

Moisture contents in air

75. 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:

3.2 kg

1.6 kg

12.6 kg

9.6 kg

Page 4 of 4

76. Velocity of sound in vacuum is

332 ms-1

320 ms-1

Zero

224 ms-1

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

Polarization

Interference

Refraction

Diffraction

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

306 m/s

360 m/s

340 m/s

331 m/s

79. 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 increase

Time period will depend on the weight of the boy.

Time period will not change

Time period will decrease

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

Quadruple the mass

Double the mass

Half the mass

Reduce the mass to one fourth

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

Angular Motion

Rectilinear Motion

Simple Harmonic Motion

Circular Motion

82. Beats are the results of

Constrictive and destructive interference

Destructive interference

Diffraction of sound waves

Polarization

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

100000 Hz

10 Hz

1 MHz

1 GHz

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

2 : 1

1 : 4

4 : 1

1 : 2

85. An oscillating mass-spring system generates

Progressive waves

Periodic waves

None of these

Mechanical waves

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

λ/4

2λ

λ/2

87. 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

√k₂/k₁

k₁/k₂

√k₁/k₂

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

Beat phenomenon

Interference

Resonance

Doppler effect

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

Polarization

Refraction

Reflection

Interference

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

Energy, momentum and mass

Energy and linear momentum

Energy and mass

Energy

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

10 m

33 m

66 m

16.5 m

92. A system under going force vibrations is known as

Driven harmonic oscillator

Frequency harmonic oscillator

None

Vibration harmonic oscillator

93. 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

32/3 m

2/3 m

3/2 m

3/32 m

94. In vibratory motion which parameter remains constant?

Angular Momentum

Total Energy

K.E. Energy

P.E. Energy

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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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