The following statement is true between Period (P) and frequency (f) of a sound wave?

Q. The following statement is true between Period (P) and frequency (f) of a sound wave?

A.            P is inversely proportional to f

B.            P is linearly proportional to f

C.            P is directly proportional to the square of f

D.            P is directly proportional to f

Answer: P is inversely proportional to f