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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
State two conditions for an echo to take place
State the safe limit of sound level in terms of decibel for human hearing.
Smaller the membrane, .................. is the pitch.
How does sound travel in air?
Define the following term:
Frequency
State three factors on which loudness of sound heard by a listener depends.
Figure shows four waves A, B, C, and D
Name the wave which shows
(a) a note from a musical instrument,
(b) a soft note
(c) a shrill note.
What determines the pitch of a sound?
Name the factors which determine the loudness of a note.
Draw a diagram to show the waveforms of a pure note and a musical note, of the same pitch and same loudness.
