Practicing Success
A doctor has prescribed a corrective lens of power + 2.0 D to a women. Which lens she will require? |
Concave lens of focal length 50 cm. Convex lens of focal length 0.5 cm. Convex lens of focal length 50 cm. Concave lens of focal length of 0.5 cm. |
Convex lens of focal length 50 cm. |
The correct answer is Option (3) → Convex lens of focal length 50 cm. |