Exam-style question
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Explain the advantages of mirrors over large lenses in reflecting telescopes.
Model answer
What a good answer should say
- Mirrors have several advantages over large lenses in reflecting telescopes, including the ability to be made much larger without the risk of distortion or chromatic aberration.
- Additionally, mirrors can be supported from behind, allowing for larger apertures, which improves light-gathering ability and resolution.
Explanation
Why this works
This answer is strong as it highlights the key benefits of using mirrors in telescope design, addressing common issues associated with lenses. It tests the ability to compare and contrast different optical components, which is crucial for understanding telescope functionality.
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