syllll_213
- 17
- 1
- Homework Statement
- An object is in a distance of 14 cm from a converging lens. The lens produces a virtual image at a distance 18 cm from the object.
What is the focal length of the lens (in cm).
- Relevant Equations
- 1/f = 1/di + 1/do
I attempted and keyed in the answer as 63 but I was graded wrong. What am I missing?