Astronomy quiz question: adaptive optics

Astronomy 210 Quiz 3, Spring Semester 2011
Cuesta College, San Luis Obispo, CA

Adaptive optics improves the resolution of visible light telescope images by compensating for:
(A) light pollution.
(B) chromatic aberration.
(C) atmospheric turbulence.
(D) lack of light gathering power.

Correct answer: (C)

The computer-controlled secondary mirror of a telescope with adaptive optics deconvolutes poor-seeing images.

Section 30674
(A) : 5 students
(B) : 1 student
(C) : 29 students
(D) : 6 students

"Success level": 71% (including partial credit for multiple-choice)
Discrimination index (Aubrecht & Aubrecht, 1983): 0.73
Exam code: quiz03n7uu

Section 30676
(A) : 5 students
(B) : 1 student
(C) : 24 students
(D) : 12 students
(No response) : 1 student

"Success level": 56% (including partial credit for multiple-choice)
Discrimination index (Aubrecht & Aubrecht, 1983): 0.83
Exam code: quiz03s3ts