During propagation of sound through air, there is no change in pressure but there is fluctuation of density.
Propagation of sound can be visualized as propagation of density variations or pressure variations in a medium .Explain.
The phenomenon of sound wave propagation has two main features.
As we know that sound is produced by vibrating of objects .
And there is no displacement in particles during vibration
HOw is this possible that movement is there but diplacement is not there