The power of a lens is 1/focal length (measured in meters).

1/f = 1/i + 1/o

1/f = 1/2 + 1/5 = 7/10

f = 10/7 meters

the feminist lens of the kiss by gustav Klimt is the judith 1

The defect the person suffers from is myopia.

1/f=1/u+1/v

1/f=1/-85-1/infinity

f=-85 cm

=-0.85 m

The power of the lens=1/f

=1/-0.85

=-1.176 D

Concave lens have negative focal length and are used for myopia.

Thus the the lens that should be used to correct this defect is a concave lens of -1.176 D.

Because the 2cm lens has 4 times the area of a 1cm lens.

(area = Pi*r2)