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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > In the spectrum of light of a luminous heavenly body the wavelength of a spectral line is measured to be 4747 A which actual wavelength of the line is 4700 A. The relative velocity of the heavenly body

In the spectrum of light of a luminous heavenly body the wavelength of a spectral line is measured to be 4747 A which actual wavelength of the line is 4700 A. The relative velocity of the heavenly body

A spectral line lemda = 5000 A in the light coming from a distant star is observed as a 5200 A. What will be recession velocity of the star?