1. Tardigrade
  2. Question
  3. Physics
  4. A light ray is incident by grazing one of the face of a prism and after refraction ray does not emerge out, what should be the angle of prism while critical angle is C ?

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. A light ray is incident by grazing one of the face of a prism and after refraction ray does not emerge out, what should be the angle of prism while critical angle is $C$ ?

Ray Optics and Optical Instruments

Solution:

From ray diagram
$A=C+\theta$ for TIR at $A C$
$\theta > C$ so $A > 2 C$
image