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Physics, 31.01.2020 03:43 alisucaalisuca
Alight beam has speed c in vacuum and speed v in a certain plastic. the index of refraction n of this plastic isn=cvn=(v/c)^2n=v/cn=c/vn=(c/v)^2
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Alight beam has speed c in vacuum and speed v in a certain plastic. the index of refraction n of thi...
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