Saved Bookmarks
| 1. |
A farsighted person cannot focus distinctly objects closer than 100 cm. The lens that will permit him to read from a distance of 50 cm, will have a focal length:A. +50 cmB. -50 cmC. +100 cmD. -100 cm |
|
Answer» A farsighted person cannot focus distinctly objects closer than 100 cm. The lens that will permit him to read from a distance of 50 cm, will have a focal length: A. +50 cm B. -50 cm C. +100 cm D. -100 cm |
|