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The apparent wavelength of light from a ...

The apparent wavelength of light from a star moving away from earth is observed to be 0.01% more than its real wavelength. The velocity of star is

A

120 `kms^(-1)`

B

`90 kms^(-1)`

C

`60 kms^(-1)`

D

`30 kms^(-1)`

Text Solution

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The correct Answer is:
D
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