Question

A monochromatic light is travelling in a medium of refractive index

Answer 1

A monochromatic light is travelling in a medium of refractive index n = 1.6. It enters a stack of glass layers from the bottom side at an angle θ = 30°. The interfaces of the glass layers are parallel to each other. The refractive indices of different glass layers are monotonically decreasing as nm= n – mΔn, where nm is the refractive index of the mth slab and Δn = 0.1 (seethe figure). The ray is refracted out parallel to the interfacebetween the (m – 1)th and mth slabs from the right side of the stack. What is the value of m? Read more on Sarthaks.com - https://www.sarthaks.com/49060/a-monochromatic-light-is-travelling-in-a-medium-of-refractive-index-n-1-6