Multiple Choice
Is there a relationship between the mass of a main-sequence star and its luminosity?
A) No. Large masses can have low luminosities and vice versa.
B) Yes. Mass and luminosity are related linearly: A star twice as massive has twice the luminosity.
C) Yes. The mass and luminosity are related, but not linearly: A star twice as massive has more than twice the luminosity.
D) Yes, but surprisingly there is an anticorrelation: Larger masses have smaller luminosities.
Correct Answer:
Verified
Correct Answer:
Verified
Q129: Which of these is not a type
Q130: When observers look out at the night
Q131: The star Hadar is classified as B1
Q132: Apparent magnitude is a measure of a
Q133: How can astronomers tell that some stars
Q135: Where are the MOST massive stars to
Q136: If the surface temperature of a star
Q137: As a person drives along a road,
Q138: The star Alphard has an apparent magnitude
Q139: What is the fundamental difference between absolute