Cuesta College, San Luis Obispo, CA
A supergiant will be ___________ compared to a giant that has the same size.
(A) cooler and dimmer.
(B) cooler and brighter.
(C) hotter and dimmer.
(D) hotter and brighter.
Correct answer (highlight to unhide): (D)
An H-R diagram is provided with this quiz.
These stars are plotted on an H-R diagram below. The supergiant has a hotter temperature and a brighter luminosity than the main-sequence star, in order for them to have the same size.
The entries for the "box method" of comparing relative Stefan-Boltzmann parameters are listed below.
| Lum. | = | size | × | Temp.4 | |
| supergiant | ↑ | = | ↑ | ||
| giant | ↓ | = | ↓ |
Section 30674
Exam code: quiz05nUL7
(A) : 1 student
(B) : 3 students
(C) : 2 students
(D) : 13 students
Success level: 70% (including partial credit for multiple-choice)
Discrimination index (Aubrecht & Aubrecht, 1983): 0.80
Section 30676
Exam code: quiz05sPrB
(A) : 4 students
(B) : 3 students
(C) : 1 student
(D) : 43 students
Success level: 85% (including partial credit for multiple-choice)
Discrimination index (Aubrecht & Aubrecht, 1983): 0.24
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