The fractional change in wavelength of light coming from a star is 0.014%. What is the velocity?

The fractional change in wavelength of light coming from a star is 0.0

1.	The fractional change in wavelength of light coming from a star is 0.014%. What is the velocity?
Answer» `4.2 XX 10^(3) m//s` `3.8 xx 10^(8) m//s` `3.5 xx 10^(3) m//s` `4.2 xx10^(4) m//s` ANSWER :D