A thin plate of transparent plastic is embedded in a thick slab of glass. The index of refraction of the glass is n = 1.50 ; the index of refraction of the plate changes as shown in the diagram. A bea

Question

A thin plate of transparent plastic is embedded in a thick slab of glass. The index of refraction of the glass is n = 1.50 ; the index of refraction of the plate changes as shown in the diagram. A beam of light passes through glass and strikes the surface of the plastic plate. The maximum angle of incidence θ max ​ enables the beam to pass through the plate. Find θ max ​ ( in ∘ ) .

TestHub · Accepted Answer

θ ≈ 5 3 ∘ For refraction from plastic sheet i < θ C ​ maximum angle i = θ C ​ sin i = sin θ C ​ = μ D ​ μ r ​ ​ = 1.5 1.2 ​ sin θ C ​ = 5 4 ​ θ C ​ = 5 3 ∘

Physics - Geometrical Optics Question with Solution | TestHub

Doubts & Discussion