如图所示ab两束不同的单色光平行地从空气射入水中�生折射α>β则下述结论正确的是 A.水对光束a的折射率较大b.水中光束b的速度 Template




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tomski如图所示ab两束不同的单色光平行地从空气射入水中�生折射α>β则下述结论正确的是 a.水对光束a的折射率较大b.水中光束b的速度 coloring