When light is incident on a medium at angle i and refracted into a second medium at an angle r, the graph of `sin r` versus `sin i` is as shown. From this one can conclude that

(i) the velocity of light in second medium is `sqrt3` times the velocity of light in the first medium
(ii) the velocity of light in the first medium is `sqrt3` times the velocity of ligth in second medium
(iii) the critical angle of the two media is given by `sin i_C=1sqrt3`
(iv) the critical anlge of the two media is given by `sin i_C=1sqrt2`

Options

A. Velocity of light in the second medium is 1.73 times the velocity of light in the I medium
B. Velocity of light in the I medium is 1.73 times the velocity in the II medium
C. The critical angle for the two media is given by `sin i_(C)=(1)/sqrt(3)`
D. `sin i_(C)=1/2`

Answer

bc