本题目来源于试卷: Nuclear & Quantum Physics E.5 Stellar Properties & Processes，类别为 IB物理学
[单选题]
A star with a mass of twite/on*1a oy ;vce the mass of the sung1bf0/c,eh p r.:9pu .g9iphp6masur is a main sequence star. The time the sun is expected to spend in the main sequence is T. Which of the following is correct for the time the stc1r:pu us0/.9h hpip gfp gmeb,r.a96ar is expected to spend in the main sequence and the next stage in its evolution?
A. Time is More than T ; Stage is Red giant
B. Time is More than T ; Stage is Supergiant
C. Time is Less than T ; Stage is Red giant
D. Time is Less than T ; Stage is Supergiant
参考答案: C
本题详细解析:
Explanation: The stars have greater mass have higher luminosity which results in a shorter time to run out of hydrogen. Therefore, the lifetime of a star on the main sequence is roughly inversely proportional to the mass of the star. Since the star has greater mass than the sun, time is less than T. Moreover, the mass of the star is less than four times the solar mass. Hence, it is a moderate-mass star and it will become a red giant in its next evolutionary stage.
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