Question

Hi mate plz find answer

Two thin lenses of power +3.5D and -2.5D are placed in contact. Find the power and focal length of the lens combination.

Answer 1

Explanation:

Power(p) =p1+p2=3.5+2.5=6.0 Dfocal length(f) =1/p=1/6=0.166meterhope it will help you

Answer 2

Explanation:

I hope this helpful to u