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The velocity of a moving galaxy is 300 k...

The velocity of a moving galaxy is 300 km `s^(-1)` and the apparent change in wavelength of a spectral line emitted form the glalxy is observed as 0.5 nm. Then, the actual wavelength of the spectral line is

A

3000 Å

B

5000Å

C

6000 Å

D

4500 Å

Text Solution

Verified by Experts

The correct Answer is:
B
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