Mirror Equation Calculator
mirror/lens equation calculator. Get instant, accurate results. Enter values for instant results with step-by-step formulas.
Reviewed by Manoj Kumar, Mathematics Educator
Reviewed by Manoj Kumar, Mathematics Educator
Formula
1/f = 1/dโ + 1/dแตข | m = -dแตข/dโ
Relates focal length, object distance, and image distance for mirrors and thin lenses.
Worked Examples
Example 1: Converging lens
Problem:f=10cm, dโ=30cm
Solution:1/dแตข=1/10-1/30=2/30, dแตข=15cm, m=-0.5
Result:dแตข=15cm, m=-0.5ร
Reviewed by Manoj Kumar, Mathematics Educator ยท Editorial policy