Resolution: Given perfect lenses, what is the main reason that a telescope with a large-diameter objective lens can produce a sharper image than one with a small-diameter lens?
A. A larger lens can gather more light than a smaller lens.
B. A larger lens can focus more accurately than a smaller lens.
C. There is less diffraction with a larger lens than with a smaller lens.
D. A larger lens can focus more wavelengths of light than a smaller lens.
E. A larger lens has a longer focal length than a smaller lens.
Answer: C
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