What is the relation between focal length of a lens and the refractive index of the material of lens?
Answers
You can calculate the focal power/focal length of a single refracting curved surface with the formula
p=nR−nLR=1f
With curvature radius R and left and right refractive indices nL and nR.
The focal power of a normal lens is calculated with the powers of the two surfaces p1 and p2 it consists of, together with an often negliged term adressing the lenses thickness D.
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What is the relation between refractive index and focal length of a lens?
You can calculate the focal power/focal length of a single refracting curved surface with the formula
p=nR−nLR=1f
With curvature radius R and left and right refractive indices nL and nR.
The focal power of a normal lens is calculated with the powers of the two surfaces p1 and p2 it consists of, together with an often negliged term adressing the lenses thickness D.
p12=p1+p2−p1p2DnR1
This formula is called Gullstrand’s formula. He got a nobel price in medicine for finding this and applying it on the human eye around 1910.
MARK AS BRAINLIEST