A closed organ pipe (closed at one end) is excited to suppor... | Physics | SolveeIt | Solveeit

Today, August 18

Question

A closed organ pipe (closed at one end) is excited to support the third overtone. It is found that air in the pipe has

A

three nodes and three antinodes

B

three nodes and four antinodes

C

four nodes and three antinodes

D

four nodes and four antinodes

Answer

four nodes and four antinodes

Explanation

Solution

Third overtone has a frequency $4n$ , $4^{th}$ harmonic = three full loops + one half loop, which would make four nodes and four antinodes.