When simple harmonic progressive waves, travelling through a medium each succeeding particle

What is Simple Harmonic Progressive Wave ?

When a simple harmonic progressive wave travels through the medium, the relation between phase difference and path difference is

When a simple harmonic progressive wave is propogating the medium, all the particles of the medium vibrate with

Define progressive wave or a travelling wave.

When progressive waves travelling through a medium which are incident normally on a rigid reflecting surface and get reflected with a phase change of

When progressive waves travelling through a medium which are incident normally on a free end and get reflected with a phase change of

Derive an expression for a one dimensional simple harmonic progressive wave travelling in the direction of the positive X- axis. Express it in different forms.