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

Options

A. at the two ends
B. at he distance of `L/2` inside the ends
C. at a distance of `L/4` inside the ends
D. at a distance of `L/8` inside the ends

Answer

B

Explanation

For the open organ pipe in its fundamental mode the node is at the centre or at a distance of `L/2` from the end and at the node displacement is minimum but pressure variation is maximum .