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範例:核衰變與古生物鑑定[87日大]

在活的生物體內，同位素14C與12C含量的比值為10-13。現有一古生物，其14C與12C含量之比值為1.25×10-14。已知14C的半衰期為5730年，則此古生物死時距今約多少年?[87日大]

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Posted in 原子核, 歷屆物理考題.

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By admin – 2010 年 05 月 14 日

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