虹和霓的角色散  

Angular Dispersion of Rainbow and Secondary Rainbow

作　　者：金蓉[1] 

机构地区：[1]西华大学理化学院物理系,四川成都610039

出　　处：《安庆师范学院学报（自然科学版）》2008年第1期88-90,共3页Journal of Anqing Teachers College(Natural Science Edition)

摘　　要：虹和霓是一种美丽的自然现象,它是太阳光经雨滴后产生的一种色散现象。研究虹霓的角色散,并将它与水三棱镜的角色散进行比较,结果表明,虹和霓的角色散具有相同的数学形式,在数值上,霓的角色散比虹的角色散大;球形雨滴对光的色散作用大。The angular dispersion of rainbow and secondary rainbow is studied,and their comparison are made between the angular dispersion of a spherical raindrop and that of a water triangular prism. The results indicate that their formulae of angular dispersion are same, and in value the angular dispersion of secondary rainbow is bigger and the dispersion of the spherical raindrop to light is stronger than that of water triangular prism.

关 键 词：虹霓 角色散 角色散公式 

分 类 号：O43[机械工程—光学工程]