The wavelength of a distant star is 5700 and the spectral

Last updated: 6/1/2023

The wavelength of a distant star is 5700 and the spectral light has a shift 1 9 towards red end then the velocity of star relative to earth will be 1 5 x 105 m sec 3 1 8 105 m sec 2 2 105 m sec 4 1x 105 m sec