Choose all that apply. Refraction telescopes:
are used to pick up the faintest objects in the sky
require less maintenance
are used by professional astronomers
have small lengths compared to other telescopes
are used when image quality is important
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Answered by
2
Answer:
ans1 ,2 3
Explanation:
rakesh58450:
how is 2nd correct?They are very much huge which makes them difficult to maintain due to which reflecting telescopes are used mostly
Answered by
3
2nd and 4th are probably wrong because they are very huge and difficult to maintain. Other option not so sure.
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