Quiz 5.

NAME:________________________

1. In the space next to each statement, write either "T" for TRUE, or "F" for FALSE. (2 pt. ea.)

F: The Earth's atmosphere does not absorb radiation in any wavelengths.

T: Larger aperture telescopes have better resolution.

T: CCD's and the eyes are optical detectors.

T: The metal in radio dishes acts like a mirror in optical telescopes.


2. Place a check next to two properties that do not directly affect "seeing." (4 pt.)

does not affect seeing: atmospheric temperature (but temperature of telescope and telescope housing does affect seeing)

does affect seeing: amospheric water vapor & clouds (can't see through clouds in visible; and water absorbs IR and reflects radio)

does affect seeing: atmospheric turbulence and rough winds (makes stars twinkle)

does not affect seeing: the time of year (affects what's in the night sky, but not how well you can see it!)

does affect seeing: so-called light pollution