Exam-style question
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What is the effect of increasing the aperture of a telescope on its collecting power?.
- A.It decreases the collecting power.
- B.It has no effect on the collecting power.
- C.It increases the collecting power.
- D.It only affects the resolution.
Model answer
What a good answer should say
- It increases the collecting power.
Explanation
Why this works
Increasing the aperture of a telescope allows it to collect more light, which enhances its collecting power. This is because a larger aperture can gather more photons from distant objects, improving the brightness and clarity of the observed image.
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