Question

What are the advantages of a reflecting telescope over a refracting telescope?

• A. Mirrors can be made bigger than lenses in size.
• B. No chromatic aberration.
• C. In case parabolic mirror is used, then no spherical aberration.
• D. Some light gets blocked inside the refracting telescope, but not reflecting telescope.

Answer 1

Answer: (A), (B), (C)

The correct options are
A Mirrors can be made bigger than lenses in size.
B No chromatic aberration.
C In case parabolic mirror is used, then no spherical aberration.

Hey, if these don't ring a bell, just have quick look at the previous video.