Green light has a shorter wavelength than orange light. In a 5-inch telescope, green light will
A) come to the same exact focus as orange light.
B) reduce the effects of atmospheric turbulence.
C) provide worse angular resolution than orange light.
D) provide better angular resolution than orange light.
E) allow dimmer stars to be observed.
D
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Coronae on Venus are believed to be
a. impact craters. b. caused by rising convection currents in the interior of Venus. c. the result of plate tectonics. d. located only in the polar regions of Venus. e. much older than the highlands such as Ishtar Terra.
Slanting Surfaces Without Friction: A 2.8-kg tool can move on a perfectly smooth ramp that slants at 42° above the horizontal. What are the magnitude and direction of the acceleration of this tool if it is sliding (a) up the ram, (b) down the ramp?
What will be an ideal response?
What is meant by the microwave observations of the cosmic background radiation revealing the "genetic code" of the universe?
What will be an ideal response?
A camera lens that covers the film with a wider field of view than that of the eye and through which objects appear smaller is referred to as a
A) normal lens. B) telephoto lens. C) wide-angle lens. D) zoom lens. E) digital lens.