Refracting telescopes use lenses. Reflecting telescopes use mirrors. However, both types of telescopes have something in common. How are both types of telescopes similar?

A)They both magnify tiny nearby objects.
B)They both reflect light that enters the telescope.
C)They both concentrate electromagnetic radiation.
D)They are both classified as non-optical telescopes.
I think the answer is B.

3 answers

Me too but i'm not sure....

the answer is A

It's C I did it

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