Question

An open organ pipe of length L vibrates in its fundamental mode. The pressure variation is maximum

• A. At the two ends
• B. At the middle of the pipe
• C. At distances $\frac{L}{4}$ inside from the ends
• D. At distances $\frac{L}{8}$ inside from the ends.

Answer 1

The correct option is B

At the middle of the pipe

Pressure change is maximum at the position of displacement nodes.