Question

69. A ray of light incident at angle of 40°, on a glass slab, is
deviated through 150, while passing through glass. What
is the critical angle for the glass air surface ?
(a) 32°
(b) 35°
(c) 38°
(d) 41°​

Answer 1

Answer:

41 y7ikkkiooooiiuttuj

Answer 2

Answer:

41

Explanation:

I guess not sure