Astronomy 210 Quiz 3, Fall Semester 2010
Cuesta College, San Luis Obispo, CA
What power of an optical telescope is most affected by turbulence in Earth's atmosphere?
(A) Light-gathering power.
(B) Resolving power.
(C) Magnifying power.
(D) (None of the above choices.)
Correct answer: (B)
Resolving power depends on the smallest angular size features that can be sharply imaged; due to atmospheric turbulence, these features are most affected by "twinkling."
Section 70160
(A) : 6 students
(B) : 33 students
(C) : 2 students
(D) : 0 students
Success level: 82% (including partial credit for multiple-choice)
Discrimination index (Aubrecht & Aubrecht, 1983): 0.04
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Astronomy 210 Midterm 1, Fall Semester 2010
Cuesta College, San Luis Obispo, CA
Section 70160
(A) : 5 students
(B) : 34 students
(C) : 1 student
(D) : 0 students
Success level: 86% (including partial credit for multiple-choice)
Discrimination index (Aubrecht & Aubrecht, 1983): 0.17
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