Saved Bookmarks
| 1. |
13.When two conversing lenses of same focal length f are placed in contact , then the focal length of the combination is (1) f (2) 2f (3) f/2 (4) 3f |
| Answer» 13.When two conversing lenses of same focal length f are placed in contact , then the focal length of the combination is (1) f (2) 2f (3) f/2 (4) 3f | |