[" 2.Can you ever have a situation in which a light ray goes "],[" undeviated through a prism? "]

Can you think of a specific optical set up with a trihedral prism (no other device)in which a light ray passes undeviated through theprism. Think and draw the ray diagram.

A ray of light undergoes ……… on passing through a prism.

Three right angled prisms are glued as shown in the figure. An incident ray passes undeviated through the system. Express the refractive index (mu_(2)) of the middle prism in terms of mu_(1) and mu_(3) .

For a light ray passing through a prism

For a light ray passing through a given prism