Question

Write the relationship between angle of incidence ${}^{\prime }{i}^{\prime }$, angle of prism ${}^{\prime }{A}^{\prime }$ and angle of minimum deviation for a triangular prism.

Answer 1

Refractive index of a prism is given by

$\mu =\frac{sin\left(\frac{A+\delta }{2}\right)}{\sin \left(\frac{A}{2}\right)}$

Here A is angle of prism and $\delta$ is minimum angle of deviation.