Q. 345.0( 1 Vote )

Find the angle of minimum deviation for an equilateral prism made of a material of refractive index 1.732. What is the angle of incidence for this deviation?

Answer :

Refractive index of prism =

Angle of minimum deviation is given by =


A= angle of prism

Is the minimum deviation

× =

So, the minimum angle of deviation is and the required angle of incidence =.

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