Question

Two concave lenses, each of focal length 60 cm are placed in contact with each other. Find
the power of the combination.​

Answer 1

Answer:

( -3.334 )dioptre

Explanation:

according to power

p= 1/F1+ 1/F2

p= 100/(-60) + 100/(-60)

p=200/(-60)

p=20/(-6)

p=10/(-3)

p=(-3.33 )dioptre

PLEASE MARK BRAINLIEST