Question

the radii of curvature of two convex lens are 0.05 and 0.05 .its refractive index is1.5. what is the focal length? ​

Answer 1

hope this helps  u  

radius of curvature   = 2* focal length

0.05= 2*f

f= 0.05/2

f= 0.025

the focal length of two convex lenses = 0.025