Which one of the following telescopes contains only mirrors ?
- A. Galilean telescope
- B. Keplerian telescope
- C. Newtonian telescope ✓
- D. Schmidt telescope
Correct Answer: C. Newtonian telescope
Explanation
The Newtonian telescope is a reflecting telescope, which means it uses a primary and a secondary mirror to form an image, unlike refracting telescopes that use lenses.
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