Question

Define principal section of prism

Answer 1

Answer:

Here are two definitions

Explanation:

Definition of principal section. 1 : a plane passing through the optical axis of a crystal specifically : the principal plane that contains either the wave normal or the ray of light under discussion. 2 : a plane perpendicular to the edge of an optical prism.

Answer 2

Any section of prism, perpendicular to refracting edge is called principal section of prism.