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範例:影響干涉條紋的因素

一單色光射於相距2mm之二平行狹縫玻璃板上,光通過狹縫後射於距離2米之幕上,幕上中央明紋距第一明紋之距離為0.6毫米。則 (A)此單色光的波長為6000埃  (B)若改用4000埃 的單色光重複此實驗,則暗紋間的距離為0.4毫米 (C)若將整個裝置浸於一水槽中,則干涉條紋的間隔變為0.45毫米 (D)若將狹縫玻璃板旋轉30度,則干涉條紋的間隔變為0.69毫米 (E)若將兩狹縫間隔減半,則干涉條紋寬度加倍。

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