Due to Doppler's effect, the shift in wavelength observed is 0.1 Å fo – McqOptions

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1.	Due to Doppler's effect, the shift in wavelength observed is 0.1 Å for a star producing wavelength 6000 Å. Velocity of recession of the star will be
A.	2.5 km/s
B.	10 km/s
C.	5 km/s
D.	20 km/s
Answer» D. 20 km/s

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