You have f, and do
1/do + 1/di = 1/f
di=dodf/(do+df)=800/60
M= do/di
check my thinking.
A pin is placed 40cm away from a convex lens of focal lenght 20cm. Determine the maginification of the pin formed by the lens.
m = 40/20 = 2
am i right with this?
1 answer
1 answer