Find the angle of deviation suffered by the light ray shown in figure (18-E10). The refractive index μ = 1.5 for the prism material.

35a.PNG


Refractive index of prism = μ = 1.5


Angle of prism =A =


We know that;


35b.PNG


Angle of minimum deviation is given by =


(For small angles


⇒


⇒


⇒


So, the angle of deviation =.


1