Given perfect lenses, what is the main reason that a telescope with a large-diameter objective lens...

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 larger lens can gather more light than a smaller lens.
	A larger lens has a longer focal length than a smaller lens.
	There is less diffraction with a larger lens than with a smaller lens.
	A larger lens can focus more accurately than a smaller lens.
	A larger lens can focus more wavelengths of light than a smaller lens.

Expert Solution

The more advantageous to use the large diameter objective lens in a telescope is to increase its resolution. There is less diffraction with a larger lens than with a smaller lens.

Hence, the correct answer is option \(\mathrm{C}\)

genius_generous answered 2 years ago

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