Question

Two men lenses are in contact and focal length
the
combination is80cm
If the local
length
of one lens is 20cm, then
would be the power
of lens?
​

Answer 1

Step-by-step explanation:

Two thin lenses are in contact and the focal length of the combination is 80 cm. If the focal length of one lens is 20 cm, then the power of the other lens will be(a) 1.66 D(b) 4.00 D(