Cuesta College, San Luis Obispo, CA
Which star is the smallest?
(A) A0 white dwarf.
(B) M0 red dwarf.
(C) G5 main-sequence star.
(D) B5 main-sequence star.
(E) (There is a tie.)
Correct answer (highlight to unhide): (A)
An H-R diagram is provided with this quiz.
These stars are plotted on an H-R diagram below. The A0 white dwarf is the smallest star, followed by the M0 red dwarf, then the G5 main-sequence star, while the B5 main-sequence star is the largest.
Exam code: quiz05sPrB
(A) : 27 students
(B) : 5 students
(C) : 3 students
(D) : 5 students
(E) : 11 students
Success level: 54% (including partial credit for multiple-choice)
Discrimination index (Aubrecht & Aubrecht, 1983): 0.79