(i) How is it possible to detect the filling of a bottle under a water tap by hearing the sound at a distance?

(ii) Name the characteristic which enables one to distinguish the sound of two musical instruments even if they are of the same pitch and same loudness.

(iii) Which characteristic of sound makes it possible to recognise a person by his voice without seeing him?

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Solution

(i) The length of air column decreases, as the water level in a bottle kept under a water tap rises. Thus the frequency of sound produced increases. Hence one can get the idea of water level in the bottle by hearing sound from a distance.

(ii) The characteristic which enables one to distinguish the sound of two musical instruments even if they are of the same pitch and same loudness is quality or timbre of the sound.

(iii) The quality or timbre of a sound is the characteristic which enables us to recognise a person by his voice even without seeing him.

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Similar questions

Name the characteristic which enables one to distinguish the sound of two musical instruments even if they are of the same pitch and same loudness.

Which characteristic of sound makes it possible to recognize a person by his voice without seeing him ?

How is it possible to detect the filling of a bottle under a water tap by hearing the sound at a distance ?

Name and define the characteristic which enables one to distinguish two sounds of same loudness, but of different frequencies, given by the same instrument.

Name and define the characteristic which enables one to distinguish two sound of same loudness, but of different frequencies, given by the same instrument.

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