天气预报 > 教育 > 丁达尔效应
丁达尔效应
更新时间: 2021-03-03 12:18:55  

1、丁达尔效应:当一束光线透过胶体,从垂直入射光方向可以观察到胶体里出现的一条光亮的“通路”,这种现象叫丁达尔现象,也叫丁达尔效应(Tyndall effect)或者丁铎尔现象、丁泽尔效应、廷得耳效应。

2、产生原因:在光的传播过程中,光线照射到粒子时,如果粒子大于入射光波长很多倍,则发生光的反射;如果粒子小于入射光波长,则发生光的散射,这时观察到的是光波环绕微粒而向其四周放射的光,称为散射光或乳光。丁达尔效应就是光的散射现象或称乳光现象。由于真溶液粒子半径一般不超过1 nm,胶体粒子介于溶液中溶质粒子和浊液粒子之间,其半径在1~100 nm。

关键词: 效应

丁达尔效应相关经验

天气预报

最新推荐

页面:/news/view-896025/ | 耗时:0.4708 s | 内存:2.11 MB | 查询:4 | 缓存读取:3 写入:0 | 加载文件:25
select * from tbl_Articles WHERE ArticleID=896025 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=896025 LIMIT 0,1
select * from tbl_Articles_sphinx where id=896025 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1093652,380739,3489152,1026722,669326,1144254,3211525,3170858,2521970,550705,2265523,3501221,1182046,2386598,3523506,1955001,3281207,3268488,540729,1167858,3378609,3483982,3095856,2375352,467542,3365188,814053,994808,1142531,564490) ORDER BY field (ArticleID,1093652,380739,3489152,1026722,669326,1144254,3211525,3170858,2521970,550705,2265523,3501221,1182046,2386598,3523506,1955001,3281207,3268488,540729,1167858,3378609,3483982,3095856,2375352,467542,3365188,814053,994808,1142531,564490)