Question

A standing wave is produced in a tube open at both ends. The fundamental frequency is 300 Hz. What is the length of tube? 

Answer 1

Given : For the tube open at both the ends,

n = 300 Hz and v = 340 m / s ignoring end correction, the fundamental frequency of the tube is

n = v/2L

∴ L =  v/2n = \(\frac{340}{2×300}\) = 0.5667 m

The length of the tube open at both the ends is 0.5667 m.