M= -q/p we want magnification doubled so M=.3 and -.3p = q
1/p + 1/q = 1/f
1/p + 1/-.3p = 1/-24
Solve for p
If you want to know the original p just do the same thing with M = .15
An image formed by a convex mirror (f = -24.0 cm) has a magnification of 0.150. Which way and by how much should the object be moved to double the size of the image?
1 answer