下列四种颜色中哪种颜色的光波最长(  )A.蓝 B.绿 C.黄 D.红

作者: tihaiku 人气: - 评论: 0
问题 下列四种颜色中哪种颜色的光波最长(  )
选项 A.蓝 B.绿 C.黄 D.红
答案 D
解析 可见光指能引起视觉的电磁波。正常视力的人眼对波长约为555纳米的电磁波最为敏感,这种电磁波处于光学频谱的绿光区域。可见光的波长范围在0.77~0.39微米之间。波长不同的电磁波,引起人眼的颜色感觉不同。0.77~0.622微米,感觉为红色;0.622~0.597微米,橙色;0.597~0.577微米,黄色;0.577~0.492微米,绿色;0.492~0.455微米,蓝靛色;0.455~0.39微米,紫色。红色光波长最长。故选D。

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