Exam-style question
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What is one advantage of using mirrors in reflecting telescopes compared to large lenses?.
- A.Mirrors are lighter than lenses
- B.Mirrors do not suffer from chromatic aberration
- C.Mirrors can be made larger than lenses
- D.Mirrors are easier to clean
Model answer
What a good answer should say
- Mirrors do not suffer from chromatic aberration
Explanation
Why this works
Mirrors in reflecting telescopes do not cause chromatic aberration, which is a common issue with large lenses, allowing for clearer images across different wavelengths.
Common mistake
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