Saved Bookmarks
| 1. |
A magnifying glass is to be used at the fixed object distance of 1 inch.If it is to produce an erect image 5 items magnified, its focal length should be :(A) 0.2"(B) 0.8"(C)1.5"(D) 5" |
| Answer» A magnifying glass is to be used at the fixed object distance of 1 inch.If it is to produce an erect image 5 items magnified, its focal length should be :(A) 0.2"(B) 0.8"(C)1.5"(D) 5" | |