A light wave has a frequency of `4xx10^(14)Hz` and a wavelength of `5xx10^(-7)` meters in a medium. The refractive index of the medium is

Options

A. 1.5
B. 1.33
C. 1
D. 0.66

Answer

A

Explanation

`n = (c )/(v) = (c )/(lambda f) = (3xx 10^(8))/(5 xx 10^(-7) xx 4 xx 10^(14)) = 1.5`.