1. Tardigrade
  2. Question
  3. Physics
  4. A plot of angle of deviation Dersus of incidence for a triangular prism is shown below. The angle of incidence for which the light ray travels Angle of inc parallel to the base is

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. A plot of angle of deviation Dersus of incidence for a triangular prism is shown below.
The angle of incidence for which the light ray travels Angle of inc parallel to the base isPhysics Question Image

Ray Optics and Optical Instruments

Solution:

When light ray travels parallel to the base, the light suffers minimum deviations.
So, for minimum deviation, $D_{\min }=40^{\circ}$
$i=e=45^{\circ}$ (from graph)