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

`1.15 xx 10^(7) cm //sec`

B

`1.15 xx 10 ^(7) m //sec`

C

` 1.15 xx 10^(7) km //sec`

D

`1.15 km // sec`

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The correct Answer is:

B

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