# What is the frequency of the second harmonic sound wave in an open-ended tube that is 4.8 m long? The speed of sound in air is 340 m/s.

##### 1 Answer

Mar 15, 2018

For an open ended tube, both the ends represent antinodes,so distance between two antinodes =

So,we can say

So,

Now,we know,

Given,

So,