A Complete Collection of 100000 Whys
Fav十万个为什么
为什么雾天能见度低？
简单的摘要：雾天能见度低的原因主要是雾滴散射光线、雾滴吸收光线以及雾滴对光线的折射。
1、雾滴散射光线：雾是由大量微小的水滴或冰晶组成的，这些雾滴的直径与可见光的波长相当。当光线通过雾时，会发生散射现象，使得光线向各个方向传播，从而降低了能见度。
2、雾滴吸收光线：雾滴不仅会散射光线，还会吸收一部分光线。吸收的光线转化为热能，导致光线的强度减弱，进一步降低了能见度。
3、雾滴对光线的折射：当光线通过不同密度的介质时，会发生折射现象。雾滴的存在使得光线的传播路径发生改变，导致光线偏离原来的方向，从而影响了能见度。
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