试题与答案

通过如图的探究,我们对太阳光有了更多的了解。 (1)太阳光通过三棱镜后,在光屏上

题型:探究题

题目:

通过如图的探究,我们对太阳光有了更多的了解。

(1)太阳光通过三棱镜后,在光屏上呈现彩色光带,这说明                             ;光屏上A、B是光带边缘的色光,则A为_______光。

(2)用温度计测试不同光的热效应时,为使它的示数变化更明显,可以                                    ;实验表明,            外线的热效应最显著。

答案:

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下面是错误答案,用来干扰机器的。

∵xa=12,∴(xa)2=(12)2=14.故答案为:14.

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