Question

Give stokes' treatment to explain the change of phase when reflection takes place at a denser medium.​

Answer 1

Answer:

In physical optics, the Stokes relations, named after Sir George Gabriel Stokes, describe the relative phase of light reflected at a boundary between materials of different refractive indices. They also relate the transmission and reflection coefficients for the ... If this reversed process were actually taking place, there will be parts of the ..

Explanation:

Answer 2

Given that,

Explain the change of phase when reflection takes place at a denser medium.​

We know that,

According to refraction :    

When the light ray moves air to denser then the ray bent toward the normal. When the light ray moves denser to air then the ray bent away from the normal.

So, When the light ray moves air to denser then the ray will be reflect and the phase change will be π.

Hence, The change of phase when reflection takes place at a denser medium is π.