Questions
A circular beam of light of diameter d=2 cm falls on a plane surface of glass. The angle of incidence is 60° and refractive index of glass is =3/2. The diameter of the refracted beam is
detailed solution
Correct option is C
Let d' be the diameter of refracted beam.Then, d=PQcos60∘and d ' = PQ cos ri.e. d′d=cosrcos60∘=2cosror d′=2dcosr sinr=siniμ=3/23/2=13∴ cosr=1−sin2r=23∴ d′=(2)(2)23=423cm≈3.26cmTalk to our academic expert!
Similar Questions
A system of coordinates is drawn in a medium whose refractive index varies as A ray of light is incident at origin at an angle 600 with y –axis as shown in the figure. At point P ray becomes parallel to x-axis. Find the value of ‘H’.
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