Critical angle for light going from medium (i) to (ii) is `theta` . The speed of light in medium (i) is v then speed in medium (ii) is

Options

A. `v(1-costheta)`
B. `(v)/(sintheta)`
C. `(v)/(costheta)`
D. `(v)/(1-sintheta)`

Answer

B

Explanation

`sintheta=(mu_(2))/(mu_(1))=(v)/(v.)`
Where v and v. are the speeds of light in medium (i) and medium (ii) respectively.
`v.=(v)/(sintheta)`