question_answer

A ray of light goes from a medium of refractive index \[{{n}_{1}}\] to a medium of refractive index \[{{n}_{2}}\]. The angle of incidence is i and the angle of refraction is r. Then, sin i/sin r is equal to:

A) \[{{n}_{1}}\]

B) \[{{n}_{2}}\]

C) \[{{n}_{1}}/{{n}_{2}}\]

D) \[{{n}_{2}}/{{n}_{1}}\]

E) None of these