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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
The type of telescope which uses a parabolic primary mirror and a plane (or flat) secondary mirror which reflects light at right angles to the incoming beam, is known as a

(a)   Newtonian telescope.
(b)   Cassegrain telescope.
(c)   Refracting telescope.
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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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discovererdiscoverer
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doit_the_clown Author
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7 years ago
Smart ... Thanks!
Fleury
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Yesterday
Thanks
Mkersey12
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2 hours ago
Just got PERFECT on my quiz
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