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nicole9810:
Concave mirrors are used in telescopes but there is a problem with spherical mirrors called spherical aberration. (1) What is the problem you would see? (2) why does it happen (what causes it)? Finally, how do astronomers overcome this problem?
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psirockin2:
https://en.wikipedia.org/wiki/Spherical_aberration https://en.wikipedia.org/wiki/Reflecting_telescope dis might help
pandasurvive:
^^^ @nicole9810
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