The values of velocity of light in media of refractive index 1.41 and 1.8 are respectively

Options

A. `3.127 xx 10^(8)m//s, 0.666 xx 10^(8) m//s`
B. `1.127 xx 10^(8)m//s, 2.666 xx 10^(8) m//s`
C. `2.127 xx 10^(8)m//s, 1.666 xx 10^(8) m//s`
D. `3.127 xx 10^(8)m//s, 2.666 xx 10^(8) m//s`

Answer

C

Explanation

`v_(1) = (v_(a))/(mu_(1)) = (3 xx 10^(8))/(1.41) = 2.127 xx 10^(8) m//s`
`v_(2) = (v_(a))/(mu_(2)) = (3 xx 10^(8))/(1.5) = 2 xx 10^(8) m//s`