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. 1.25
D. 1.7

Answer

A

Explanation

(a) Refractive index of the medium,
`mu=(c)/(v)=(c)/(nlambda)=(3xx10^(8))/(4xx10^(14)xx5xx10^(-7))=1.5`