Question
Thu May 17, 2012 By: Vishnuraj
 

ABC IS AN ISOSCELES RIGHT ANGLED PRISM.WHAT IS THE CRITICAL ANGLE FOR THIS PRISM.IS THIS VALUE A CONSTANT?IF THE ANGLE OF INCIDENCE IS GREATER THAN THE CRITICAL ANGLE WILL THAT RAY UNDERGO TOTAL INTERNAL REFFLECTION OR NOT?EXPLAIN

Expert Reply
Thu May 17, 2012
 
    Reflecting prisms

    In optical instruments, right-angled prisms are widely used to divert the course of light rays. As the total internal reflection takes place within them, the loss of light energy can be kept to a minimum. So, the prisms are preferred to mirrors for the purpose of reflection.

Sat October 22, 2016

Derive:

Ask the Expert