论文部分内容阅读
本刊2003年第6期所刊的《动物中的物理趣题举隅》中有一道关于猫头鹰的题目: 有些动物在夜间几乎什么也看不到,而猫头鹰在夜间有很好的视力,其原因是猫头鹰的眼腈: A.不需要光线,也能看到目标. B.自身眼睛发光,照亮搜索目标. C.可对红外线产生视觉. D.可对紫外线产生视觉. 就题目设置的选项而言,A与B显而易见是错误的,相比之下,似乎C选项是合理的,故而C选项被认为是正确答案.但是,猫头鹰的夜视能力真的是由于眼
The issue of owls in the issue of Physics in Animals published in the sixth issue of this issue in 2003 is: Some animals are almost invisible at night, and owls have good eyesight at night. The reason is the Ophthalmic Nitrile of the Owl: A. No light is needed, and the target can be seen. B. The own eye glows and illuminates the search target. C. The visual effect can be generated on the infrared light. D. The visual effect can be generated on the UV light. In terms of options, A and B are obviously wrong, in contrast, it seems that the C option is reasonable, and the C option is considered the correct answer. However, the night vision ability of the owl is really due to the eye