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The 6563 Ã… H(alpha) line emitted by hyd...

The 6563 Ã… `H_(alpha)` line emitted by hydrogen in a star is found to be red-shifted by 15 Ã…. The speed with which the star is receding from the earth is

A

`17.3 times 10^3 m//s`

B

`4.29 times 10^7 m//s`

C

`3.39 times 10^5 m//s`

D

`2.29 times 10^5 m//s`

Text Solution

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The correct Answer is:
D
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