Quiz 3 - Quiz 3 covering chapter 5 Spring 2008 1. _ has...

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Quiz 3 covering chapter 5 Spring 2008 1. ____________ has (have) wavelengths that are longer than visible light. a. Gamma-rays b. Ultraviolet light * c. Infrared radiation d. X-rays e. a, b and d above 2. Radio telescopes have poor resolving power because a. their diameters are so large. b. the energy they receive is not electromagnetic radiation. * c. radio waves have long wavelengths. d. a and b e. none of the above 3. A new generation of telescopes is currently being built that overcomes the limitations of the older large telescopes. Some of these new telescopes a. use segmented mirrors. b. use mirrors that are very thin. c. use active optics to control the shape of the mirror. * d. all of the above. e. none of the above 4. Radio telescopes are important in astronomy because * a. they can detect cool hydrogen. b. they have high magnification. c. the can detect interstellar dust clouds. d.
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Quiz 3 - Quiz 3 covering chapter 5 Spring 2008 1. _ has...

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