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Light from a galaxy, having wavelength 6...

Light from a galaxy, having wavelength `6000 Å` is found to be shifted towards red by `50 Å`. Calculate velocity of recession of the galaxy.

Text Solution

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Given, wavelength , `lambda = 5000 Å`
Shifting of wavelength,
`Delta lambda = 50 Å`
Velocity of reunion of galaxy is
`upsilon = (Delta lambda)/(lambda) cdot c = (50)/(5000) xx 3 xx 10^(8)`
`= 3 xx 10^(6) m//s`.
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