Multiple Choice
What is Hubble's law?
A) The longer the time period between peaks in brightness,the greater the luminosity of the Cepheid variable star.
B) The recession velocity of a galaxy is directly proportional to its distance from us.
C) The recession velocity of a galaxy is inversely proportional to its distance from us.
D) The faster a spiral galaxy's rotation speed,the more luminous it is.
E) The faster a spiral galaxy's rotation speed,the less luminous it is.
Correct Answer:
Verified
Correct Answer:
Verified
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