Recent content by tennis freak

oh ok so it's just the double of the focal length then? thanks so much:biggrin:

A concave mirror has a focal length of 10 cm. what is its radius of curvature?:eek: i have absolutely no idea how to solve this, please help:cry:, any advice is greatly appreciated:smile:

hey guys i was wondering if you knew any thing that helped to prove the wave-particle duality theory of light. any help would be greatly appreciated:smile: