Optics Pyhsics?
camera (as in the first drawing), the film must be placed at a distance of 0.230 m from the lens to record an image of an object that is 3.30 m from the lens. The same lens is then used in a projector (as in the second drawing), with the screen 0.530 m from the lens. How far from the projector lens should the film be placed?
Comments
1/f = 1/u1+1/v1
=1/3.3+1/0.23
= 3.53/0.759
= 4.6509.
1/f =1/u2+1/v2
4.6509=1/u2+1/0.53
1/u2=4.6509-1.88679
=2.764064
u2=0.362m.