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Home Q & A Board Science-Related Homework Help Physics
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doit_the_clown doit_the_clown
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7 years ago
Spherical aberration in the primary mirror of a reflecting telescope is GENERALLY avoided by

(a)   making the mirror surface a parabolic shape.
(b)   using adaptive optics.
(c)   putting extra lenses in the light beam to correct for the shape of the primary mirror.
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Discovering the Universe

Discovering the Universe


Edition: 7th
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Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.

Albert Einstein
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papachulopapachulo
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doit_the_clown Author
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7 years ago
this is exactly what I needed
loki1345
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This calls for a celebration Person Raising Both Hands in Celebration
Zacellison
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2 hours ago
Helped a lot
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