Question

what is propagation of sound and what are the 2 types of waves?

Answer 1

Mechanical Waves are waves whichpropagate through a material medium (solid, liquid, or gas) at a wave speed which depends on the elastic and inertial properties of that medium. There are two basic types of wavemotion for mechanical waves: longitudinal waves and transversewaves.

Answer 2

The Propagation of sound. Sound is a sequence of waves of pressure whichpropagates through compressible media such as air or water. (Sound canpropagate through solids as well, but there are additional modes ofpropagation). During their propagation, waves can be reflected, refracted, or attentuated by the medium.

2 types -
transverse waves and longitudonal waves