An open organ pipe in vibrating in its fifth overtone. The distance between two consecutive points where pressure amplitude is `(1)/(sqrt(2))` time the pressure amplitude at pressure antinodes is 20 cm. if the length of the pipe is `(12)/(n)` m the value of `n` is?

Answer

5

Explanation

`(lamda)/(2)=40cmimplieslamda=0.8cm`
`l=(6lamda)/(2)=2.4mt=(12)/(5)m`