question_answer

A light ray passes from air into a liquid and gets deviated by an angle of \[15{}^\circ .\] The angle of incidence is \[60{}^\circ .\] What is the refractive index of the liquid?

A)  \[\sqrt{\frac{2}{3}}\]                

B)  \[\sqrt{\frac{3}{2}}\]

C)  \[\frac{\sqrt{3}}{2}\]                

D)  \[\frac{60{}^\circ }{15{}^\circ }\]