Question

A ray of light passing grom water to air is deviated 10° from its original direction.what is the a) angle o incidence b) angle of reflection c) angle of refraction?

Answer 1

$\frac{\sin \alpha}{\sin(\alpha+10)}=\frac 1n=0.75,\implies$

$\alpha=26.5°,$

$\beta=\alpha=26.5°,$

$\gamma=36.5°.$