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Cards In This Set
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What is the primary purpose of an astronomical telescope?
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To collect a lot of light and bring it to a focus.
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The process occurring when photons bounce off a polished surface is called:
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Reflection.
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Which type of telescope has the simplest light path?
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Prime Focus Reflector.
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Which design is subject to chromatic aberration?
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Refractor.
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The tendency of a wave to bend as it passes from one transparent medium to another is called:
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Refraction.
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The primary purpose of a telescope is to
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Collect a large amount of light and bring it into focus.
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What problem do refractor telescopes have that reflectors don't?
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Chromatic aberration
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This design involves only one optical surface, a concave mirror.
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Prime focus Reflector.
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The amount of diffraction and thus the resolution of the scope depends upon
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The wavelength used and the size of the main telescope objective lens or mirror.
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The angular resolution of an 8 inch diameter telescope is ____ greater than that of a 2 inch diameter telescope.
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4x
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It is diffraction that limits the ____ of a telescope's objective.
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Resolution
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What is the resolution of a telescope?
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Its ability to distinguish two adjacent objects close together in the sky.
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What type of telescope is the Subaru telescope?
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Cassegrain reflector
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What is the resolving power of the telescope?
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The ability to distinguish adjacent objects in the sky.
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The most important advantage of CCDs over film is that
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They record much more light in a given exposure time.
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