CBSE Class 12-science Answered
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
Asked by vishnuraj | 17 May, 2012, 07:33: AM
Expert Answer
- 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.
Answered by | 17 May, 2012, 18:57: PM
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Reflection by Spherical Mirrors - Part 1
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