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mcq on sound. We covered all the mcq on sound in this post for free so that you can practice well for the exam.
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Mock test on sound for Students
The characteristic of a musical note that determines its quality is
(a) fundamental frequency
(b) amplitude of the wave
(c) harmonics present
(d) velocity of sound in the medium
Option b – amplitude of the wave
The pitch of a sound primarily depends on
(a) intensity
(b) frequency
(c) quality
(d) amplitude
Option b – frequency
Identify the incorrect statement
(a) Pitch allows us to distinguish between male and female voices
(b) Loudness is determined by the frequency of the sound
(c) Musical sounds consist of frequencies that are usually harmonics of a fundamental frequency
(d) The timbre of a musical sound depends on its waveform
Option b – Loudness is determined by the frequency of the sound
Humans cannot tolerate very loud sounds beyond
(a) 80 dB
(b) 115 dB
(c) 100 dB
(d) 40 dB
Option a – 80 dB
The standard unit for measuring noise Pollution is
(a) Nanometer
(b) Decibel
(c) Hertz
(d) None of these
Option b – Decibel
The decibel level of rustling leaves under normal conditions is approximately
(a) 10 dB
(b) 20 dB
(c) 60 dB
(d) 100 dB
Option a – 10 dB
Noise Pollution occurs when sound exceeds
(a) 70–75 dB
(b) 50–60 dB
(c) 80–99 dB
(d) 40–65 dB
Option c – 80–99 dB
The tone quality of a musical sound from a stringed instrument depends on
(a) vibration frequency
(b) string length
(c) amplitude of vibration
(d) waveform of the sound
Option d – waveform of the sound
An oscilloscope is used to visualize waves produced by
(a) visible Light
(b) X-rays
(c) sound
(d) gamma rays
Option c – sound
Higher particle density in a medium through which sound travels increases its
(a) pressure
(b) energy
(c) power
(d) force
Option b – energy
A sound wave with a time period of 0.01 seconds has a frequency of
(a) 100 Hz
(b) 10 Hz
(c) 50 Hz
(d) 20 Hz
Option a – 100 Hz
Which statement is incorrect regarding sound wave propagation?
(a) Sound waves can travel through water
(b) Sound waves can travel through air
(c) Sound waves can travel through steel
(d) Sound waves can travel through a vacuum
Option d – Sound waves can travel through a vacuum
The persistence of sound in the human brain is about
(a) 1 second
(b) 0.2 second
(c) 0.1 second
(d) 0.5 second
Option c – 0.1 second
When sound waves travel through a medium, they transmit
(a) Matter only
(b) energy only
(d) energy, momentum, and Matter
Option b – energy only
Which statements are correct regarding sound waves? I. Vibrations are perpendicular to the wave direction II. Sound waves are elastic waves
(a) Only II
(b) Only I
(c) Both I and II
(d) Neither I nor II
Option a – Only II
Statement I: Sound cannot propagate in a vacuum. Statement II: Sound waves are elastic and require a medium.
(a) Both are true and II explains I
(b) Both are true but II does not explain I
(c) I is true but II is false
(d) I is false but II is true
Option b – Both are true and II explains I
Statement I: Sound can travel in a vacuum. Statement II: Light is an electromagnetic wave and can travel in a vacuum.
(a) Both are true and II explains I
(b) Both are true but II does not explain I
(c) I is true but II is false
(d) I is false but II is true
Option d – I is false but II is true
The decibel measures
(a) speed of Light
(b) intensity of Heat
(c) intensity of sound
(d) quantum of Mass
Option c – intensity of sound
The unit of perceived loudness is
(a) Decibel
(b) Sone
(c) Hertz
(d) Phon
Option a – Decibel
Loudness of sound is influenced by
(a) velocity of sound waves
(b) amplitude of sound waves
(c) frequency of sound waves
(d) frequency and velocity of sound waves
Option b – amplitude of sound waves
Identify the wave that does not belong with the others
(a) X-rays
(b) Microwaves
(c) Radiowaves
(d) Sound waves
Option d – Sound waves
Which term is unrelated to sound waves?
(a) Hertz
(b) Decibel
(c) Candela
(d) Mach
Option c – Candela
Which is not an electromagnetic wave?
(b) Radio wave
(c) Sound wave
(d) Microwave
Option c – Sound wave
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