Jee Advanced
Geometrical Optics
IIT-JEE 2005 Mains
MCQ+3 / -12005
Two identical prisms of refractive index \(\sqrt{3}\) are kept as shown in the figure. A light ray strikes the first prism at face AB. Find
(A) the angle of incidence so that the
emergent ray from the first prism has
minimum deviation;
(B) through what angle, the prism DCE
should be rotated about C so that the
final emergent ray also has minimum
deviation?

