Question

An organ pipe has a fundamental frequency of 120 Hz. Its fourth overtone is 600 Hz. Find the type of the pipe.

Options

• closed at both ends

• open at both ends

• closed at one end

• sometimes open sometimes closed

Answer 1

open at both ends

Explanation:

v = 120 Hz and v' = 600 Hz Clearly, v' = 5v

for fourth overtone, this relation is true for organ pipe open at both ends.