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sunjinghui2020
丁达尔效应（Tyndall effect）指光线通过胶体或悬浮颗粒介质时，因微小颗粒（直径小于光波长）对光的散射作用，形成可见光路的现象。其本质是光波被胶体粒子散射，散射光强度与波长四次方成反比，故蓝光散射更显著
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