为什么太阳在日出时比较大但很凉,正午时比较小但很热?
为什么太阳在日出时比较大但很凉,正午时比较小但很热?
物理人气:522 ℃时间:2020-01-29 21:50:03
优质解答
是由于太阳光由一定的片角照射到地球上,要经过更多的大气和太阳光散射的缘故,就好像用放大镜聚焦照射一个物体时,当正照90度得时候,聚焦点的温度很高,当有偏斜一定的角度照射时,聚焦的温度就低了很多,另外当正午时太阳是更垂直照到地球上,所以经过的大气散射也少,太阳就小一些,但是很热.
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