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State the factors that determine
(a) the pitch of a note.
(b) the loudness of the sound heard.
(c) the quality of the note.
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- wavelength
- frequency and
- amplitude
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Name the unit in which loudness of sound is measured.
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.
Name musical instrument, one in each case, which produces its notes by using the following. In each case state the method used to produce notes of different pitches and loudness.
(a) A vibrating string.
(b) A vibrating column air.
(c) Vibration of any other body.
When a gun is fired at a distance, why is it that the flash is seen almost instantaneously while the sound is heard a little later?
Which characteristics of sound will change if there is a change in its amplitude and its waveform.
