Red giant stars are
I. more luminous than the sun.
II. larger in diameter than the sun.
III. cooler than B stars.
IV. located above the main sequence stars in the H-R diagram.
A) I II
B) II IV
C) I, II, IV
D) II, III, IV
E) I, II, III, IV
Correct Answer:
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Q2: Spectroscopic binaries are difficult to analyze because
A)
Q2: In the H-R diagram, 90 percent of
Q5: The _ of a star is a
Q5: The star named Sheat is of M2
Q7: Parallax would be easier to measure if
A)
Q8: Use the HR diagram below to answer
Q10: Use the HR diagram below to answer
Q11: In a binary system, the more massive
Q11: Compared with the spectral lines in the
Q15: We know that giant stars are larger
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