[問題] 物理 雙狹縫實驗
波長600奈米的雷射光線雙狹縫干涉的實驗
在光屏上有a b c三點
其中a至狹縫的光程差為900奈米
c至狹縫的光程差為1200奈米
而b與雙狹縫等距離
則光在abc的干涉情形為何?
ans: a 相消干涉 bc 相長干涉
請問甚麼是光程差@@?
還有這題要怎麼解??
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