[chiluvskk]

can you guys tell me :

what is the relationship between the index of refraction of a lens and the focal length of a lens?

[charitee]

i remember learning this last year, but i dont know the answer off the top of my head. can't you find this online? im pretty sure that it's somewhere on the internet.

[chiluvskk]

i've been googeling it for over an hour, still can't find it T_T

[charitee]

i was looking it up and i found the lensmaker equation. if you look at it, it's an inverse relationship [i think], meaning that as the index of refraction increases, the focal length decreases, vice versa. im not sure if that's right. what i know for sure is that the index of refraction is one of the factors that determines as focal length [as seen in the equation].

[chiluvskk]

thanks soo much for your help! i think i understand it now haha yeh!