Exam-style question
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What is the primary cause of chromatic aberration in telescopes?.
- A.Different wavelengths of light refract at different angles
- B.The curvature of the lens is not uniform
- C.The lens material is not transparent
- D.The telescope is not properly aligned
Model answer
What a good answer should say
- Different wavelengths of light refract at different angles
Explanation
Why this works
Chromatic aberration occurs because different wavelengths of light bend at different angles when passing through a lens, leading to color fringing in images.
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