how focal length changes when light travels from red monochromatic light to blue monochromatic light

Asked by  | 30th Aug, 2008, 01:10: PM

Expert Answer:

the refractive index is of a glass is maximum for the violet light and minimum for the red light. the ray of light bends less as compared to the ray of light of violet color.hence if refractive index  decreases focal length  increases

Answered by  | 1st Sep, 2008, 04:15: PM

Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day.