Due to the relative motion between a star and the earth, the following relation is obtained between the wavelength of light from star `lambda` and Doppler displacement `Delta lambda, (V_(s) = "celocity of star")`

Options

A. `(Delta lambda)/(lambda) = V_(s) C`
B. `(Delta lambda)/(lambda)= (C)/(V_(s))`
C. `(Delta lambda)/(lambda) = (V_(s))/(C)`
D. `(Delta lambda)/(lambda) = (1)/(CV_(s))`

Answer

C