[問題]
這是Haliday普物中的敘述
In the double-slit experiment of Chapter 35, we implicitly assumed thar the
the slit were much narrower than the wavelength of the light illuminating them;
that is, a<<λ. For such narrow slits the central maximum of the diffraction
pattern of either slit covers the viewing screen.Moreover, the interference of
light from the two slits produces bright frines with appoximately the same
intensity.
文中說到當入射波長遠大於狹縫寬度 還是會有干涉條紋
而且此時強度不隨空間分佈
可是我以前學的是 當入射波長大於狹縫寬度時 會呈現消散波的形式
波行進不到幾個波長就沒了 更不要說波長"遠大於"狹縫寬了
那haliday作者的解釋是怎麼一回事....
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◆ From: 125.225.19.123
※ 編輯: kevin60405 來自: 125.225.19.123 (10/07 23:54)
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