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Sahay Sir > Question Answers > MTG NEET Physics > Part 2 > Chapter 10 - Wave Optics > The velocity of a moving galaxy is 300 kms^−1 and the apparent change in wavelength of a spectral line emitted from the galaxy is observed as 0.5 nm. Then, the actual wavelength of the spectral line is

The velocity of a moving galaxy is 300 kms^−1 and the apparent change in wavelength of a spectral line emitted from the galaxy is observed as 0.5 nm. Then, the actual wavelength of the spectral line is

the actual wavelength of the spectral line is The velocity of a moving galaxy is 300 kms^−1 and the apparent change in wavelength of a spectral line emitted from the galaxy is observed as 0.5 nm. Then