1.

A ray of light is incident on the face of an equilateral prism at angle of 90°. The ray gets totally reflected on the second refracting face. The total deviation produced in the path of ray is : (a) 60° (b) 90° (c) 120° (d) 180° 

Answer»

The total deviation produced in the path of ray is 120°.



Discussion

No Comment Found