Solve this Q 54 A ray of light incident at an angle 45 on an air-glass - Physics - Ray Optics And Optical Instruments

Question

Solve this
Q 54 A ray of light incident at an angle 45 ° on an air-glass
interface gets reflected The angle of deviation of the ray is
(a) 45 °
(b) 180 °
(c) 135 °
(d) None of these

Aarushi Mishra · Accepted Answer

We know angle of deviation of light ray upon reflectionδ=180°-2θ, where θ is angle of deviationHereθ=45°δ=180°-2×45°=180°-90°=90°Hence Answer: d
 none of these

Solve this.. Q.54. A ray of light incident at an angle 45 ° on an air-glass interface gets reflected. The angle of deviation of the ray is (a) 45 ° (b) 180 ° (c) 135 ° (d) None of these

Solve this..
Q.54. A ray of light incident at an angle 45 $°$ on an air-glass interface gets reflected. The angle of deviation of the ray is
(a) 45 $°$
(b) 180 $°$
(c) 135 $°$
(d) None of these