A small angled prism of angle $12^{\circ}$ produce a deviation of $8^{\circ}$. Then the refractive i

Question

A small angled prism of angle $12^{\circ}$ produce a deviation of $8^{\circ}$. Then the refractive index is\

Professor PC Thomas Classes · Answer

$d=A(n-1)$\ $8=12(n-1)$\ $n-1=\frac{2}{3} \quad n=$\