{"id":17629,"date":"2025-11-08T09:00:10","date_gmt":"2025-11-08T09:00:10","guid":{"rendered":"https:\/\/mcqsadda.com\/?p=17629"},"modified":"2025-11-08T10:56:00","modified_gmt":"2025-11-08T10:56:00","slug":"wave-top-100-mcqs-with-answer-and-explanation-2","status":"publish","type":"post","link":"https:\/\/mcqsadda.com\/index.php\/2025\/11\/08\/wave-top-100-mcqs-with-answer-and-explanation-2\/","title":{"rendered":"Wave Top 100 MCQs With Answer and Explanation"},"content":{"rendered":"\n

1. A wave is a disturbance which<\/mark><\/strong>
A) Transfers energy without transfer of matter
B) Transfers both energy and matter
C) Transfers only particles
D) Transfers only force
Answer:<\/strong> A) Transfers energy without transfer of matter
Explanation:<\/strong> Waves carry energy from one point to another; the medium only vibrates.<\/p>\n\n\n\n

2. The substance or material through which a wave travels is called<\/mark><\/strong>
A) Medium
B) Source
C) Path
D) Motion
Answer:<\/strong> A) Medium<\/p>\n\n\n\n

3. Waves that require a medium for their propagation are called<\/mark><\/strong>
A) Mechanical waves
B) Electromagnetic waves
C) Light waves
D) Quantum waves
Answer:<\/strong> A) Mechanical waves<\/p>\n\n\n\n

4. Waves that can travel in vacuum are called<\/mark><\/strong>
A) Electromagnetic waves
B) Mechanical waves
C) Sound waves
D) Matter waves
Answer:<\/strong> A) Electromagnetic waves
Explanation:<\/strong> Light, radio, and X-rays can travel through vacuum.<\/p>\n\n\n\n

5. Sound waves are examples of<\/mark><\/strong>
A) Mechanical waves
B) Electromagnetic waves
C) Matter waves
D) Transverse waves
Answer:<\/strong> A) Mechanical waves<\/p>\n\n\n\n

6. In which type of wave do particles vibrate parallel to wave direction?<\/mark><\/strong>
A) Longitudinal wave
B) Transverse wave
C) Electromagnetic wave
D) Circular wave
Answer:<\/strong> A) Longitudinal wave<\/p>\n\n\n\n

7. In which type of wave do particles vibrate perpendicular to wave direction?<\/mark><\/strong>
A) Transverse wave
B) Longitudinal wave
C) Sound wave
D) Stationary wave
Answer:<\/strong> A) Transverse wave<\/p>\n\n\n\n

8. Example of a transverse wave is<\/mark><\/strong>
A) Light wave
B) Sound wave in air
C) Seismic P-wave
D) Pressure wave
Answer:<\/strong> A) Light wave<\/p>\n\n\n\n

9. Example of a longitudinal wave is<\/mark><\/strong>
A) Sound wave in air
B) Light wave
C) Water wave
D) Radio wave
Answer:<\/strong> A) Sound wave in air<\/p>\n\n\n\n

10. The highest point on a transverse wave is called<\/mark><\/strong>
A) Crest
B) Trough
C) Node
D) Antinode
Answer:<\/strong> A) Crest<\/p>\n\n\n\n

11. The lowest point on a transverse wave is called<\/mark><\/strong>
A) Trough
B) Crest
C) Node
D) Mean point
Answer:<\/strong> A) Trough<\/p>\n\n\n\n

12. The distance between two consecutive crests or troughs is called<\/mark><\/strong>
A) Wavelength
B) Amplitude
C) Frequency
D) Period
Answer:<\/strong> A) Wavelength<\/p>\n\n\n\n

13. The maximum displacement of a particle from its mean position is called<\/mark><\/strong>
A) Amplitude
B) Frequency
C) Velocity
D) Period
Answer:<\/strong> A) Amplitude<\/p>\n\n\n\n

14. The number of vibrations made in one second is called<\/mark><\/strong>
A) Frequency
B) Amplitude
C) Wavelength
D) Period
Answer:<\/strong> A) Frequency<\/p>\n\n\n\n

15. The time taken to complete one vibration is called<\/mark><\/strong>
A) Time period
B) Frequency
C) Amplitude
D) Length
Answer:<\/strong> A) Time period<\/p>\n\n\n\n

16. The unit of frequency is<\/mark><\/strong>
A) Hertz
B) Second
C) Joule
D) Meter
Answer:<\/strong> A) Hertz<\/p>\n\n\n\n

17. The product of frequency and wavelength gives<\/mark><\/strong>
A) Speed of the wave
B) Energy
C) Amplitude
D) Acceleration
Answer:<\/strong> A) Speed of the wave<\/p>\n\n\n\n

18. In sound waves, regions of high pressure are called<\/mark><\/strong>
A) Compressions
B) Rarefactions
C) Crests
D) Nodes
Answer:<\/strong> A) Compressions<\/p>\n\n\n\n

19. In sound waves, regions of low pressure are called<\/mark><\/strong>
A) Rarefactions
B) Compressions
C) Crests
D) Antinodes
Answer:<\/strong> A) Rarefactions<\/p>\n\n\n\n

20. The wave which remains confined in a medium and does not transfer energy away is called<\/mark><\/strong>
A) Stationary wave
B) Progressive wave
C) Electromagnetic wave
D) Shock wave
Answer:<\/strong> A) Stationary wave<\/p>\n\n\n\n

21. A progressive wave transfers<\/mark><\/strong>
A) Energy
B) Matter
C) Pressure
D) Mass
Answer:<\/strong> A) Energy<\/p>\n\n\n\n

22. Sound cannot travel through<\/mark><\/strong>
A) Vacuum
B) Air
C) Water
D) Steel
Answer:<\/strong> A) Vacuum<\/p>\n\n\n\n

23. The wave motion of sound in air is<\/mark><\/strong>
A) Longitudinal
B) Transverse
C) Circular
D) Stationary
Answer:<\/strong> A) Longitudinal<\/p>\n\n\n\n

24. The speed of sound is greatest in<\/mark><\/strong>
A) Solids
B) Liquids
C) Gases
D) Vacuum
Answer:<\/strong> A) Solids
Explanation:<\/strong> Molecules in solids are closer and transmit vibrations faster.<\/p>\n\n\n\n

25. The speed of sound is least in<\/mark><\/strong>
A) Gases
B) Liquids
C) Solids
D) Vacuum
Answer:<\/strong> A) Gases<\/p>\n\n\n\n

26. The speed of sound in air increases with<\/mark><\/strong>
A) Increase in temperature
B) Decrease in temperature
C) Humidity reduction
D) High pressure
Answer:<\/strong> A) Increase in temperature<\/p>\n\n\n\n

27. The speed of sound in air also increases with<\/mark><\/strong>
A) Increase in humidity
B) Decrease in humidity
C) No change in humidity
D) Pressure changes
Answer:<\/strong> A) Increase in humidity<\/p>\n\n\n\n

28. The waves produced by plucking a stretched string are<\/mark><\/strong>
A) Transverse
B) Longitudinal
C) Stationary
D) Random
Answer:<\/strong> A) Transverse<\/p>\n\n\n\n

29. The waves produced in a tuning fork are<\/mark><\/strong>
A) Longitudinal
B) Transverse
C) Stationary
D) Circular
Answer:<\/strong> A) Longitudinal<\/p>\n\n\n\n

30. The stationary waves are formed by<\/mark><\/strong>
A) Superposition of two similar waves moving in opposite directions
B) Reflection only
C) Refraction of waves
D) Dispersion
Answer:<\/strong> A) Superposition of two similar waves moving in opposite directions<\/p>\n\n\n\n

31. The points in stationary waves where displacement is always zero are called<\/mark><\/strong>
A) Nodes
B) Antinodes
C) Crests
D) Troughs
Answer:<\/strong> A) Nodes<\/p>\n\n\n\n

32. The points in stationary waves where displacement is maximum are called<\/mark><\/strong>
A) Antinodes
B) Nodes
C) Crests
D) Mean points
Answer:<\/strong> A) Antinodes<\/p>\n\n\n\n

33. The distance between two consecutive nodes is<\/mark><\/strong>
A) Half of wavelength
B) Equal to wavelength
C) Double of wavelength
D) Quarter of wavelength
Answer:<\/strong> A) Half of wavelength<\/p>\n\n\n\n

34. The wave property responsible for echo is<\/mark><\/strong>
A) Reflection
B) Refraction
C) Diffraction
D) Interference
Answer:<\/strong> A) Reflection<\/p>\n\n\n\n

35. The phenomenon of bending of waves around corners is<\/mark><\/strong>
A) Diffraction
B) Reflection
C) Refraction
D) Polarization
Answer:<\/strong> A) Diffraction<\/p>\n\n\n\n

36. The change in direction of waves when they pass from one medium to another is<\/mark><\/strong>
A) Refraction
B) Reflection
C) Diffraction
D) Resonance
Answer:<\/strong> A) Refraction<\/p>\n\n\n\n

37. The overlapping of two or more waves is called<\/mark><\/strong>
A) Interference
B) Diffraction
C) Reflection
D) Resonance
Answer:<\/strong> A) Interference<\/p>\n\n\n\n

38. When two waves meet and their amplitudes add up, it is called<\/mark><\/strong>
A) Constructive interference
B) Destructive interference
C) Diffraction
D) Polarization
Answer:<\/strong> A) Constructive interference<\/p>\n\n\n\n

39. When two waves meet and their amplitudes cancel each other, it is called<\/mark><\/strong>
A) Destructive interference
B) Constructive interference
C) Reflection
D) Diffraction
Answer:<\/strong> A) Destructive interference<\/p>\n\n\n\n

40. The formation of beats occurs due to<\/mark><\/strong>
A) Interference of two waves of slightly different frequencies
B) Resonance
C) Refraction
D) Polarization
Answer:<\/strong> A) Interference of two waves of slightly different frequencies<\/p>\n\n\n\n

41. When two sound waves of slightly different frequencies reach the ear, the resulting phenomenon is called<\/mark><\/strong>
A) Beats
B) Echo
C) Resonance
D) Interference
Answer:<\/strong> A) Beats
Explanation:<\/strong> Beats occur due to alternate reinforcement and cancellation of sound waves of nearby frequencies.<\/p>\n\n\n\n

42. The time interval between two successive beats is called<\/mark><\/strong>
A) Beat period
B) Beat frequency
C) Time lag
D) Time difference
Answer:<\/strong> A) Beat period
Explanation:<\/strong> It\u2019s the time between one loud sound and the next in a beat pattern.<\/p>\n\n\n\n

43. The phenomenon of repeated reflection of sound causing prolongation of sound is called<\/mark><\/strong>
A) Reverberation
B) Echo
C) Reflection
D) Resonance
Answer:<\/strong> A) Reverberation
Explanation:<\/strong> Reverberation occurs when sound reflects continuously and overlaps with the original sound.<\/p>\n\n\n\n

44. The reflection of sound from a distant surface so that it is heard again is called<\/mark><\/strong>
A) Echo
B) Refraction
C) Resonance
D) Interference
Answer:<\/strong> A) Echo
Explanation:<\/strong> An echo is a distinct repetition of sound after reflection from a distant object.<\/p>\n\n\n\n

45. The persistence of sound after the source has stopped due to multiple reflections is<\/mark><\/strong>
A) Reverberation
B) Resonance
C) Interference
D) Diffraction
Answer:<\/strong> A) Reverberation<\/p>\n\n\n\n

46. The minimum distance required for an echo to be heard distinctly is about<\/mark><\/strong>
A) 17 meters
B) 34 meters
C) 50 meters
D) 100 meters
Answer:<\/strong> A) 17 meters
Explanation:<\/strong> Sound must take at least one-tenth of a second to return, which corresponds to roughly 17 m.<\/p>\n\n\n\n

47. The loudness of sound depends on<\/mark><\/strong>
A) Amplitude
B) Frequency
C) Velocity
D) Wavelength
Answer:<\/strong> A) Amplitude
Explanation:<\/strong> Greater amplitude means greater energy, hence louder sound.<\/p>\n\n\n\n

48. The pitch of sound depends on<\/mark><\/strong>
A) Frequency
B) Amplitude
C) Speed
D) Energy
Answer:<\/strong> A) Frequency
Explanation:<\/strong> High frequency corresponds to a high-pitched sound.<\/p>\n\n\n\n

49. The quality or timbre of sound helps us to distinguish between<\/mark><\/strong>
A) Different sources of sound
B) Loud and soft sounds
C) Fast and slow sounds
D) Near and far sounds
Answer:<\/strong> A) Different sources of sound
Explanation:<\/strong> Quality depends on waveform, which makes voices or instruments sound different.<\/p>\n\n\n\n

50. The characteristics of sound are<\/mark><\/strong>
A) Loudness, pitch, and quality
B) Speed, mass, and length
C) Amplitude and weight
D) Density and velocity
Answer:<\/strong> A) Loudness, pitch, and quality<\/p>\n\n\n\n

51. The unit of loudness is<\/mark><\/strong>
A) Decibel
B) Hertz
C) Meter
D) Newton
Answer:<\/strong> A) Decibel<\/p>\n\n\n\n

52. The unit of intensity of sound is<\/mark><\/strong>
A) Watt per square meter
B) Hertz
C) Newton
D) Pascal
Answer:<\/strong> A) Watt per square meter
Explanation:<\/strong> Intensity means energy transmitted per unit area per second.<\/p>\n\n\n\n

53. The sound which is pleasant to hear is called<\/mark><\/strong>
A) Music
B) Noise
C) Echo
D) Resonance
Answer:<\/strong> A) Music<\/p>\n\n\n\n

54. The sound which is unpleasant and irregular is called<\/mark><\/strong>
A) Noise
B) Music
C) Resonance
D) Echo
Answer:<\/strong> A) Noise<\/p>\n\n\n\n

55. The sound of a tuning fork is<\/mark><\/strong>
A) Musical
B) Noisy
C) Rough
D) Continuous
Answer:<\/strong> A) Musical
Explanation:<\/strong> The vibrations are regular and periodic.<\/p>\n\n\n\n

56. The property of sound by which we distinguish a male voice from a female voice is<\/mark><\/strong>
A) Quality
B) Pitch
C) Loudness
D) Speed
Answer:<\/strong> A) Quality<\/p>\n\n\n\n

57. The range of frequencies audible to human ears is approximately<\/mark><\/strong>
A) 20 Hz to 20,000 Hz
B) 0 Hz to 1,000 Hz
C) 100 Hz to 1,000 Hz
D) 10,000 Hz to 100,000 Hz
Answer:<\/strong> A) 20 Hz to 20,000 Hz<\/p>\n\n\n\n

58. Sound waves with frequencies less than 20 Hz are called<\/mark><\/strong>
A) Infrasonic waves
B) Ultrasonic waves
C) Supersonic waves
D) Subsonic waves
Answer:<\/strong> A) Infrasonic waves<\/p>\n\n\n\n

59. Sound waves with frequencies greater than 20,000 Hz are called<\/strong>
<\/mark>A) Ultrasonic waves
B) Infrasonic waves
C) Supersonic waves
D) Electromagnetic waves
Answer:<\/strong> A) Ultrasonic waves<\/p>\n\n\n\n

60. Bats use which type of sound for navigation?<\/mark><\/strong>
A) Ultrasonic waves
B) Infrasonic waves
C) Audible sound
D) Supersonic waves
Answer:<\/strong> A) Ultrasonic waves
Explanation:<\/strong> Bats emit high-frequency sound and detect its reflection to locate objects.<\/p>\n\n\n\n

61. The study of sound and its properties is called<\/mark><\/strong>
A) Acoustics
B) Optics
C) Mechanics
D) Dynamics
Answer:<\/strong> A) Acoustics<\/p>\n\n\n\n

62. The device used to measure the intensity of sound is called<\/mark><\/strong>
A) Sound level meter
B) Thermometer
C) Barometer
D) Manometer
Answer:<\/strong> A) Sound level meter<\/p>\n\n\n\n

63. The speed of sound in air depends on<\/mark><\/strong>
A) Temperature and humidity
B) Pressure only
C) Density only
D) Altitude only
Answer:<\/strong> A) Temperature and humidity<\/p>\n\n\n\n

64. The sound travels faster in humid air because<\/mark><\/strong>
A) Water vapor is lighter than air
B) Air pressure increases
C) Density increases
D) Temperature decreases
Answer:<\/strong> A) Water vapor is lighter than air<\/p>\n\n\n\n

65. The device used to study vibration of tuning fork is<\/mark><\/strong>
A) Sonometer
B) Barometer
C) Manometer
D) Oscilloscope
Answer:<\/strong> A) Sonometer<\/p>\n\n\n\n

66. The speed of sound in air is approximately<\/mark><\/strong>
A) 340 meters per second
B) 100 meters per second
C) 500 meters per second
D) 700 meters per second
Answer:<\/strong> A) 340 meters per second<\/p>\n\n\n\n

67. The speed of sound in water is approximately<\/mark><\/strong>
A) 1500 meters per second
B) 300 meters per second
C) 340 meters per second
D) 100 meters per second
Answer:<\/strong> A) 1500 meters per second<\/p>\n\n\n\n

68. The speed of sound in steel is approximately<\/mark><\/strong>
A) 5000 meters per second
B) 340 meters per second
C) 1500 meters per second
D) 200 meters per second
Answer:<\/strong> A) 5000 meters per second<\/p>\n\n\n\n

69. The speed of sound is not affected by<\/mark><\/strong>
A) Pressure (at constant temperature)
B) Temperature
C) Humidity
D) Medium
Answer:<\/strong> A) Pressure (at constant temperature)<\/p>\n\n\n\n

70. The phenomenon of change in frequency due to motion of source or observer is called<\/mark><\/strong>
A) Doppler effect
B) Resonance
C) Interference
D) Diffraction
Answer:<\/strong> A) Doppler effect<\/p>\n\n\n\n

71. When the source of sound approaches the listener, the frequency appears to<\/mark><\/strong>
A) Increase
B) Decrease
C) Remain constant
D) Stop
Answer:<\/strong> A) Increase
Explanation:<\/strong> Due to Doppler effect, waves get compressed, increasing frequency.<\/p>\n\n\n\n

72. When the source of sound moves away from the listener, frequency appears to<\/mark><\/strong>
A) Decrease
B) Increase
C) Stay constant
D) Become zero
Answer:<\/strong> A) Decrease<\/p>\n\n\n\n

73. The Doppler effect is used in<\/mark><\/strong>
A) Radar and medical imaging
B) Cooking
C) Painting
D) Music recording
Answer:<\/strong> A) Radar and medical imaging<\/p>\n\n\n\n

74. Echo sounding is used to measure<\/mark><\/strong>
A) Depth of sea
B) Height of mountains
C) Density of air
D) Temperature
Answer:<\/strong> A) Depth of sea<\/p>\n\n\n\n

75. The device used for detecting underwater objects using sound waves is<\/strong>
<\/mark>A) SONAR
B) RADAR
C) LASER
D) MICROSCOPE
Answer:<\/strong> A) SONAR
Explanation:<\/strong> SONAR uses reflected sound waves to locate underwater objects.<\/p>\n\n\n\n

76. The principle of SONAR is based on<\/strong>
<\/mark>A) Reflection of sound waves
B) Refraction of light
C) Diffraction of waves
D) Polarization
Answer:<\/strong> A) Reflection of sound waves<\/p>\n\n\n\n

77. Sound waves are best reflected by<\/strong>
<\/mark>A) Hard and smooth surfaces
B) Soft and rough surfaces
C) Air
D) Foam
Answer:<\/strong> A) Hard and smooth surfaces<\/p>\n\n\n\n

78. In auditorium design, walls and ceilings are made with<\/strong>
<\/mark>A) Sound-absorbing materials
B) Glass
C) Metal
D) Stone
Answer:<\/strong> A) Sound-absorbing materials
Explanation:<\/strong> These prevent unwanted echoes and reverberations.<\/p>\n\n\n\n

79. Multiple reflections of sound in a hall make it<\/strong>
<\/mark>A) Noisy
B) Pleasant
C) Louder
D) Clearer
Answer:<\/strong> A) Noisy<\/p>\n\n\n\n

80. The speed of sound is greater in<\/strong>
<\/mark>A) Warm air than cold air
B) Cold air than warm air
C) Dry air than humid air
D) Vacuum
Answer:<\/strong> A) Warm air than cold air<\/p>\n\n\n\n

81. Sound cannot be polarized because<\/strong>
<\/mark>A) It is longitudinal
B) It is transverse
C) It is random
D) It has no medium
Answer:<\/strong> A) It is longitudinal<\/p>\n\n\n\n

82. The range of human hearing is known as<\/strong>
<\/mark>A) Audible range
B) Sonic range
C) Ultrasonic range
D) Subsonic range
Answer:<\/strong> A) Audible range<\/p>\n\n\n\n

83. Dogs can hear frequencies higher than<\/strong>
<\/mark>A) 20,000 Hz
B) 10,000 Hz
C) 15,000 Hz
D) 5,000 Hz
Answer:<\/strong> A) 20,000 Hz<\/p>\n\n\n\n

84. The reflection of sound used by bats and dolphins is called<\/strong>
<\/mark>A) Echolocation
B) Interference
C) Refraction
D) Resonance
Answer:<\/strong> A) Echolocation<\/p>\n\n\n\n

85. The sound produced by a bell is an example of<\/strong>
<\/mark>A) Vibrations of a solid
B) Vibrations of air only
C) Vibrations of liquid
D) Light reflection
Answer:<\/strong> A) Vibrations of a solid<\/p>\n\n\n\n

86. The main cause of noise pollution is<\/strong>
<\/mark>A) Irregular and loud sounds
B) Soft music
C) Gentle vibration
D) None
Answer:<\/strong> A) Irregular and loud sounds<\/p>\n\n\n\n

87. The unit used to measure noise level is<\/strong>
<\/mark>A) Decibel
B) Watt
C) Hertz
D) Joule
Answer:<\/strong> A) Decibel<\/p>\n\n\n\n

88. High intensity of sound can cause<\/strong>
<\/mark>A) Deafness
B) Dizziness
C) Eye strain
D) Fever
Answer:<\/strong> A) Deafness<\/p>\n\n\n\n

89. The waves produced in a stretched spring are<\/strong>
<\/mark>A) Longitudinal
B) Transverse
C) Standing
D) Rotational
Answer:<\/strong> A) Longitudinal<\/p>\n\n\n\n

90. The property that allows sound to bend around obstacles is<\/strong>
<\/mark>A) Diffraction
B) Reflection
C) Refraction
D) Resonance
Answer:<\/strong> A) Diffraction<\/p>\n\n\n\n

91. The speed of sound depends on<\/strong>
<\/mark>A) Elasticity and density of medium
B) Color of sound
C) Volume
D) Weight
Answer:<\/strong> A) Elasticity and density of medium<\/p>\n\n\n\n

92. Sound travels faster in hydrogen than in air because<\/strong>
<\/mark>A) Hydrogen is lighter
B) Hydrogen is denser
C) Hydrogen is colder
D) Hydrogen has low energy
Answer:<\/strong> A) Hydrogen is lighter<\/p>\n\n\n\n

93. The time taken by sound to travel to an obstacle and back is<\/strong>
<\/mark>A) Echo time
B) Sound delay
C) Beat time
D) Frequency
Answer:<\/strong> A) Echo time<\/p>\n\n\n\n

94. Sound travels fastest in<\/strong>
<\/mark>A) Solids
B) Liquids
C) Gases
D) Vacuum
Answer:<\/strong> A) Solids<\/p>\n\n\n\n

95. In solids, sound travels due to<\/strong>
<\/mark>A) Elastic vibrations of particles
B) Free flow of air
C) Magnetic effects
D) Light energy
Answer:<\/strong> A) Elastic vibrations of particles<\/p>\n\n\n\n

96. Sound is produced due to<\/strong>
<\/mark>A) Vibration of objects
B) Heat
C) Light
D) Pressure
Answer:<\/strong> A) Vibration of objects<\/p>\n\n\n\n

97. In a wave, the energy transfer takes place through<\/strong>
<\/mark>A) Vibration of particles
B) Motion of matter
C) Radiation only
D) Diffusion
Answer:<\/strong> A) Vibration of particles<\/p>\n\n\n\n

98. Sound travels in air as<\/strong>
<\/mark>A) Longitudinal wave
B) Transverse wave
C) Stationary wave
D) Light wave
Answer:<\/strong> A) Longitudinal wave<\/p>\n\n\n\n

99. The phenomenon of resonance increases<\/strong>
<\/mark>A) Amplitude of vibration
B) Speed of wave
C) Frequency
D) Density
Answer:<\/strong> A) Amplitude of vibration<\/p>\n\n\n\n

100. Waves are essential in<\/strong>
<\/mark>A) Communication, music, and technology
B) Cooking
C) Digestion
D) Motion of planets
Answer:<\/strong> A) Communication, music, and technology
Explanation:<\/strong> Radio, TV, mobile, and sound systems all work on wave principles.<\/p>\n","protected":false},"excerpt":{"rendered":"

1. A wave is a disturbance whichA) Transfers energy without transfer of matterB) Transfers both energy and matterC) Transfers only particlesD) Transfers only forceAnswer: A) Transfers energy without transfer of matterExplanation: Waves carry energy from one point to another; the medium only vibrates. 2. The substance or material through which a wave travels is calledA)<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-17629","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-blog"},"_links":{"self":[{"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/posts\/17629","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/comments?post=17629"}],"version-history":[{"count":3,"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/posts\/17629\/revisions"}],"predecessor-version":[{"id":17670,"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/posts\/17629\/revisions\/17670"}],"wp:attachment":[{"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/media?parent=17629"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/categories?post=17629"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/tags?post=17629"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}