A longitudinal sound wave given by `p = 2.5 sin.(pi)/(2) (x - 600 t)` (`p` is in `N//m^(2)` , x is in metal and `t` is in second) is sent down a closed a orgain pipe. If the pipe vibrates in its second overtone, the length of the pipe is

Answer

`5.00`

Explanation

`K = pi/2 = (2pi)/lambda rArr lambda = 4`
Second overtone `rArr (5lambda)/4 = L rArr L = 5 m`