Question: A ray is incident normally on a right angle prism whose refractive index is$\sqrt { 3 }$ and prism...

Question

A ray is incident normally on a right angle prism whose refractive index is $\sqrt { 3 }$ and prism anglea = 30⁰, after crossing prism ray passes through glass sphere, it strikes the glass sphere at distance from principal axis as shown in figure, sphere is half polished. Find the net angle of deviation of incident ray –

Answer 1

Solution

m sin 30⁰ = sinb

b = 60⁰

d = 60⁰ – 30⁰ = 30⁰

point P where it strike is

tan q = = $\frac { 1 } { \sqrt { 3 } }$

\ q = 30⁰

\ q = d

so ray strike spherical surface normally

\ It retrace the path

\ Angle of deviation = 180⁰

Question: A ray is incident normally on a right angle prism whose refractive index is\(\sqrt { 3 }\) and prism...

Solution