A glass slab of thickness 4 cm contains the same number of waves as 5 cm of water. When both are tra

Question

A glass slab of thickness 4 cm contains the same number of waves as 5 cm of water. When both are traversed by the same number of monochromatic light. If the refractive index of water is $4 / 3$. What is that of glass

Professor PC Thomas Classes · Answer

Use the concept of optical path