A double convex lens has two surfaces of equal radii R and refractive index m=1.5. We have,
The lensmaker’s formula, .
Putting, R1=-R2=R,

Question

A double convex lens has two surfaces of equal radii R and refractive index m =1.5. We have,

Philoid · Accepted Answer

The lensmaker’s formula, .

Putting, R1=-R2=R,