Exam-style question
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Explain how the aperture of a telescope affects its collecting power.
Model answer
What a good answer should say
- The collecting power of a telescope increases with the square of the aperture diameter.
- A larger aperture allows more light to enter, enhancing the ability to observe faint objects.
Explanation
Why this works
This answer is strong because it clearly connects the size of the aperture to the collecting power, demonstrating an understanding of the relationship between these two concepts. The question tests the ability to explain a fundamental principle in telescope design.
Common mistake
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