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प्रश्न
State three factors on which loundess of sound heard by a listener depends.
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उत्तर
The loudness of the sound heard depends on:
(i) Loudness is proportional to the square of the amplitude.
(ii) Loudness is inversely proportional to the square of distance.
(iii)Loudness depends on the surface area of the vibrating body.
संबंधित प्रश्न
In a longitudinal wave, compression and rarefaction are formed.
The quality of a sound depends on the amplitude of wave.
The pitch of sound depends on frequency.
Name and define the characteristic which enables one to distinguish two sounds of same loudness, but of different frequencies, given by the same instrument.
How is the pitch of sound in a guitar changed if (a) thin wire is used, (b) wire under less tension is used?
Two identical guitars are played by two persons to give notes of the same pitch. Will they differ in quality? Give a reason for your answer.
Explain the following and illustrate your answer by drawing appropriate diagram:
Frequency
Explain the following and illustrate your answer by drawing appropriate diagram:
Loudness
Which characteristics of sound will change if there is a change in its amplitude and its waveform.
Two waves of the same pitch have their amplitudes in the ratio 2 : 3.
(i) What will be the ratio of their loudness?
(ii) What will be the ratio of their frequencies?
