Prisms and Polychromatic Light Dispersal

Most recent answer: 02/22/2016

If a poly chromatic light is directed perpendicular to the side of the glass prism (that coincides with the normal) will the light still disperse?
- nikhil (age 14)
Indore, MP,India

There won't be any angular dispersal at that surface where the light enters normal to the surface. When the light exits, however, it will go through a different surface at a different angle, and it will disperse there.

Mike W.

(published on 02/22/2016)