Notes

Combination of Thin Lenses in Contact…

Combination of Thin Lenses in Contact – If two or more lenses are placed in contact, then total focal length of the combination,
1/f = 1/f1 + 1/f2 + 1/f3 + … = Σni = 1 1/fi
Total power of combination, P = P1 + P2 + P3 + … = Σni = 1Pi