Saved Bookmarks
| 1. |
A convex lens forms an erect and two times magnified image of an object placed at a distance 10cm in front of it.Find the position of the image. please ans fast !!!! |
|
Answer» ong>Answer: Answer: A) the object is PLACED between f1and optic center . b) the focal length COULD be FOUND through lens formulae as magnification is +3. +3u=v 1/f=1/v-1/u =1/3u-1/u =(1-3)/3u =-2/3*-20(u =-20) =f=15cm |
|