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1- Imagine that you want to build a radio telescope and an optical telescope and that...

1- Imagine that you want to build a radio telescope and an optical telescope and that you want them to both have the same angular resolution, assume that both telescopes can reach the diffraction limit. Which telescope will have to have a larger diameter? Explain your reasoning.

2- How many times larger is the collecting area of a 4-meter telescope than a 1-meter telescope?

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