Lenses and Prisms
Medium
Prism Refraction Angle
Consider an equilateral prism (refractive index
). A ray of light is incident on its one surface at a certain angle i. If the emergent ray is found to graze along the other surface then the angle of refraction at the incident surface is close to ____.
). A ray of light is incident on its one surface at a certain angle i. If the emergent ray is found to graze along the other surface then the angle of refraction at the incident surface is close to ____.SELECT ONE OPTION