Question

sketch a ray diagram using all 3 principle rays to show that when an object is placed at a distance of 1.5f from a converging lens of focal length f, the image formed is inverted, real, and enlarged in size. Show, using the thin lens and magnification equations, that your calculated values for q and m agree with your diagram...

I have the diagram drawn and im pretty sure that it is correct, however i am unsure how to relate and figure out the calculated values of q and m with such little information on the measurements... HELP!

Answer 1

if by 1.5f you mean (1.5)*(focal length), then substitute for f in equations and solve for image distace in terms off. That's how i worked it out in attached picture.

Otherwise, you're right, it doesn't seem like there is enough information.