Question

Two sounds A and B are of same amplitudes, same wave forms but of frequencies F and 2F respectively.

Then :

(a) B differ in quality from A

(b) B is grave, A is shrill

(c) B is shrill, A is grave

(d) B is louder than A.

Answer 1

Option (c) is correct, i.e., B is shrill, A is grave.

Explanation: Shrillness or pitch of a sound is directly proportional to the frequency of the sound wave. Greater the frequency, shriller will be the note.