Question

Give the formula that can be used to determine refractive index of materials of a prism in minimum deviation condition ?

Answer 1

The formula used for determining the refractive index of materials of a prism in minimum deviation condition,

`n_21 = (sin[(A+D_m) /2])/(sin[A/2])`

Where, n₂₁  `->`Refractive index of prism material with respect to the surrounding medium

A `->`Angle of the prism

D_m`->`Angle of minimum deviation