Questions
A ray of light from a denser medium strikes a rarer medium at art angle of incidence i. The reflected and refracted rays make an angle of /2 with each other. If the angles of reflection and refraction are r and r', then the critical angle will be
detailed solution
Correct option is C
μ=sin r'sin iBut r' + r = 90° or r' = 90° - r r' =90° - i ∴ μ=cos isin i or 1sin ic=1tan i or ic = sin-1(tan i)Talk to our academic expert!
Similar Questions
Light is incident normally on face AB of a prism as shown. A liquid of refractive index is placed on face AC of the prism. The prism is made of glass of refractive index 3/2. The limit of for which total internal reflection takes place on face AC is
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