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在一折射率為n介質中,有半徑為R的圓洞,洞內為真空。今有一光束自介質射向圓洞,如圖所示。如果不讓光束射入洞內,則距離d的最小值為何?[86日大]
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Posted in 全反射, 歷屆物理考題.
Tagged with 86日大, 全反射, 圓形界面.
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By admin – 2009 年 10 月 27 日
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