Naked Science Forum

Non Life Sciences => Physics, Astronomy & Cosmology => Topic started by: Chikis on 17/07/2014 02:41:18

Title: Use the lens formula to show that f^2 = ab
Post by: Chikis on 17/07/2014 02:41:18

 Use the lens formula to show that . = square of focal length. a = object distance. b = image distance. I need help please.
The lens formular =
How do I do that?