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The spectral line of wavelength lambda=5...

The spectral line of wavelength `lambda=5000 Å` in the light coming from a distant star is observed as 5200 Å.Determine the recession velocity of the star.

A

`1.2 xx 10^7` cm/s

B

`1.2 xx 10^7` m/s

C

`1.2 xx 10^7` km/s

D

`1.2 `km/s

Text Solution

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The correct Answer is:
B
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