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A star is receding from earth with a vel...

A star is receding from earth with a velocity `3 xx 10^(6) m//s` . If the actual wavelength of the light emitted by the star is `lambda and Delta lambda` is the displacement in wavelength as observed on earth then ` Delta lambda : lambda` is -

A

`1 : 3 xx 10^(6)`

B

` 1 : 10^(2)`

C

`10^(3) : 1`

D

`10^(2) : 1`

Text Solution

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The correct Answer is:
B
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