The equation of a longitudinal standing wave due to superposition of the progressive
Channel: Doubtnut
Date: 23/08/2020

The equation of a longitudinal standing wave due to superposition of the progressive waves producted by two sources of sound is `s = -20 sin 10 pix sin 100 pit` where `s` is the displacement from mean position measured in `mm, x` is in meters and is in seconds. The specific gravity of the medium is `10^(-3)`. Density of water `= 10^(3)kg//m^(3)`. Find :  (a) Wavelength, frequency and velocity of the progressive waves.  (b) Bulk modulus of the medium and the pressure amplitude.  (c) Minimum distance between pressure antinode and a displacement anotinode.  (d) Intensity at the displacement nodes.