Recent content by Jona

That pic is in his notebook I think it's a strange pic -*-

Really it's my brother homework and I may solve this one for him if I've enough time And I write down that "I prefer the solution next sunday" Because he shout to me like that, so thanks for your all advices. And I may put my solution in this post and attach that image again Thank you...

Hi everyone This is my exercise. Calculate the longitudinal magnification of an object of length L placed along the principal axis of a lens (of focal length f) with the end B at distance H from the lens :confused: I've attached the image of this problem I prefer the solution next...