Multiple Choice
You record the spectrum of a star and find that a calcium absorption line has an observed wavelength of 394.0 nm.This calcium absorption line has a rest wavelength of 393.3 nm.What is the approximate radial velocity of this star?
A) 5,000 km/s
B) 500 km/s
C) 50 km/s
D) 5 km/s
E) 0.5 km/s
Correct Answer:
Verified
Correct Answer:
Verified
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