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