Which of the following relation hold good for refraction between a pair of media with `i_1 and i_2` as angles incidence and refraction `v_1 and v_2` as velocities of light in the media ?

Options

A. `upsilon_(2) sin i_(1) = upsilon_(1) sin i_2`
B. `upsilon_(1) cos i_(1) = v_(2) cos i_(2)`
C. `upsilon_(1) cosec i_(1) = upsilon_(2) cosec i_(2)`
D. `upsilon_(1) sec i_(1) = v_(2) sec i_(2)`

Answer

C