我想問optical fibre出面個層hair-thin glass fibre有咩用?
同埋surrounded hair-thin glass fibre既material點解要with a smaller refractive index?
(緊急..)關於optical fibre
2007-12-19 12:57 am
回答 (2)
2007-12-19 8:33 am
✔ 最佳答案
當光線的入射角>臨界角 , 而係由高密度->低密度 ( high refractive index -> low refractive index ) 既話 , 光就會有 total internal reflection, 出面層hair-thin glass fibre 就係要提供呢個condition.
2007-12-19 6:09 am
我想問optical fibre出面個層hair-thin glass fibre有咩用?
因為有glass先會有total internal reflection全內反射
因為有glass先會有total internal reflection全內反射
收錄日期: 2021-04-28 15:09:41
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https://hk.answers.yahoo.com/question/index?qid=20071218000051KK01993