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Earn 100

Define relationship between intensity and loudness of sound

Important Questions on Sound

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Physics>Waves and Oscillations>Sound>Qualities of Sound
Which characteristic of sound, makes it possible to recognize a person by his voice without seeing him?
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Physics>Waves and Oscillations>Sound>Qualities of Sound
The intensity of sound during the festival season increased by, 100 times. This could imply a decibel level rise from-
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Physics>Waves and Oscillations>Sound>Qualities of Sound
Bass control in stereo system increases the power of
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Physics>Waves and Oscillations>Sound>Qualities of Sound
A hearing test is conducted on an aged person. It is found that her threshold of hearing is 20 dB at 1 kHz, and it rises linearly with frequency to, 60 dB at, 9 kHz. The minimum intensity of sound that the person can hear at, 5 kHz is,
MEDIUM
Physics>Waves and Oscillations>Sound>Qualities of Sound
A small speaker delivers 2 W of audio output. At what distance from the speaker will one detect 120  dB intensity sound? [Given reference intensity of sound as 10-12 W/m2 ]
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Physics>Waves and Oscillations>Sound>Qualities of Sound
The intensity of a sound appears to an observer to be periodic. Which of the following can be the cause of it?
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Physics>Waves and Oscillations>Sound>Qualities of Sound
How is it possible to detect the filling of a bottle under a tap by hearing its sound from a distance?
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Physics>Waves and Oscillations>Sound>Qualities of Sound
We can distinguish between the musical sounds produced by different singers on the basis of the characteristic of sound called :
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Physics>Waves and Oscillations>Sound>Qualities of Sound
Name three characteristics of a musical sound.
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Physics>Waves and Oscillations>Sound>Qualities of Sound
The sound produced by a moving bee is shrill and high pitched. Give reason.
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Physics>Waves and Oscillations>Sound>Qualities of Sound
The pitch of _____ depends on frequency.
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Physics>Waves and Oscillations>Sound>Qualities of Sound

If the thickness of a vibrating string is increased, its pitch _____.

(Choose from the following: decreases/ increases).

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Physics>Waves and Oscillations>Sound>Qualities of Sound
A key of a mechanical piano is struck gently and then struck again but much harder this time. In the second case,
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Physics>Waves and Oscillations>Sound>Qualities of Sound
How do the frequency and amplitude affect a musical sound?
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Physics>Waves and Oscillations>Sound>Qualities of Sound
A key of mechanical piano is first struck gently and then struck again but much harder this time. In the second case:
MEDIUM
Physics>Waves and Oscillations>Sound>Qualities of Sound
The voice of children and women is shrill as compared to the voice of men. Give reasons.
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Physics>Waves and Oscillations>Sound>Qualities of Sound
Pitch of a sound depends on the _____ of vibration.
MEDIUM
Physics>Waves and Oscillations>Sound>Qualities of Sound
A tuning fork when sounded close to the mouth of a pipe produces
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Physics>Waves and Oscillations>Sound>Qualities of Sound

The pitch of a sound depends on _____.

(Choose from: amplitude/frequency)

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Physics>Waves and Oscillations>Sound>Qualities of Sound
We can distinguish a shrill sound from a flat sound by its: