A candle is placed 10 inches from a convex lens whose focal length is 5 in. Where will the image be formed? How large an image is formed?
The Attempt at a Solution
Here we use the following formula to find where the image will be formed:
1/f=1/Do+1/Di 1/Di=1/f-1/Do =
1/Di=1/5-1/10 = 2-1/10 = 10 in.
Here's the equation to solve part B but I don't know how to figure "So" which would be dimensions of the candle. Any help?