Recent content by deni

c1 = n * c2 where: c1 - optical path length , c2 - geometrical path length and n - refreactive index Thank you a lot this is exactly what I was searching for.

The content wasn't in English so this was the reason why I haven't posted reference. I have learned Geometrical Optics but still I can't understand completely the question. The question exactly was: What is difference between optical and geometrical length of optic path? Now I'm really...

I'm searching for a week from now and can't find out difference between optical and geometrical length in optical path. Can anyone explain or give me idea or how can I find it out?