1.

A narrow sound pulse( for example, a short pip by a whistle ) is sent across a medium(i) Does the pulse have a definite (a) frequency , (b) wevelength , ( M69)speed of propagation?(ii) If the pulse rate is 1 after every 20s , (that is the whistle is blown for a split of second after every 20 s ) , is the frequency of the note produced by the whistle equal to 1/20 or 0.05 Hz ?

Answer»


SOLUTION :N/A


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