- #1
Larrytsai
- 228
- 0
Hi I need help on figuring where and how 1/f = 1/do + 1/di
My teacher told me it relates to the ray diagram but i have no clue where to start to find where this formula has come from. Any help would be much appreciated.
My teacher told me it relates to the ray diagram but i have no clue where to start to find where this formula has come from. Any help would be much appreciated.