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标题: 反射定律的疑惑[:-M][:-M][:-M] [打印本页]

作者: Java+ 时间: 2007-10-18 05:01
标题: 反射定律的疑惑[:-M][:-M][:-M]

水平镜面上放一块理想的长方体玻璃块，空气中一束无限细的光线垂直于与镜面接触的玻璃块的棱与镜面的边界入射，相对于镜面的入射角为A，且0度

作者: salmonfish 时间: 2007-10-18 05:34
标题: 回复：反射定律的疑惑[:-M][:-M][:-M]

in reply window, click " 免费上传图片、音频、视频等文件，请点击这里 ", then follow the instruction.

作者: Java+ 时间: 2007-10-18 06:04
标题: [@};-][@};-]谢谢！图传上来了！[:-M][:-M][:-M]

谢谢！图传上来了！

作者: Java+ 时间: 2007-10-18 06:13
标题: 再上传！[:-M][:-M][:-M]

http://upload.ddhw.com/show.aspx?id=70063.jpg

作者: xyh 时间: 2007-10-18 07:29
标题: 回复：再上传！[:-M][:-M][:-M]（图）

在发贴编辑器的下方看到插入内容，选择图片，然后提供图片URL，最后别忘了点击“插入”按钮

您可以插入图片，歌曲，电影，Flash或内嵌网页等；如果不确定宽度和高度，请不要填。 URL地址要以 http:// 或者 rstp:// 或者 mms://等开头。如果需要帮助，请点击帮助... 。
插入内容：宽度：高度：
URL地址：

下面的图片就是操作后的结果

作者: salmonfish 时间: 2007-10-18 08:25
标题: 回复：反射定律的疑惑[:-M][:-M][:-M]

suppose that infinite thin beam strikes the mirror through the gap between the mirror and the glass, also that the mirror and the glass block are made of the same material, then, there are two scenarios:

1. when the incident angle (defined as an angle from the norm) is larger than the critical angle (~83-86 degree), the total refelction occurs, and the reflection beam will be aligned with (or parallel to) the interface of the mirror and the glass block, and in the same plane with the incident beam.

2. when the incident angle (A) is smaller than the critical angle, the reflection beam will come into the glass block with a reflection angle smaller than A. When the beam continues, and comes out from the glass block (into air), it will have an outgoing reflection angle A.

(tomorrow, I'll draw you a graph to show it)

cheers

本贴由[salmonfish]最后编辑于：2007-10-18 0:30:33

本贴由[salmonfish]最后编辑于：2007-10-18 8:31:37

本贴由[salmonfish]最后编辑于：2007-10-18 9:35:48

作者: salmonfish 时间: 2007-10-18 18:24
标题: 图。（图）

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