Questions
A ray of light incident normally on an isosceles right angled prism travels as shown in the figure. The least value of the refractive index of the prism must be
detailed solution
Correct option is A
From figure it is clear that TIR takes place at surface AC and BCi.e., 45o>C⇒sin45o>sinC⇒12>1μ⇒μ>2⇒μ>2Hence μleast=2Talk to our academic expert!
Similar Questions
ABC is an isosceles right angled triangle with the angle BAC 90o. A ray of light parallel to the base BC strikes the face AB. The refracted ray in the prism strikes the base BC. If the refractive index of the material of the prism is , find the total angle of deviation of the final emergent ray
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