Note above - the light source ("object") is on the left, the lens is in the middle, and the screen (where any "real image" forms) is on the right.
Distance between object and lens is do.
Distance between image and lens is di.
In your lab, you will record this data (at least):
do
di
Real or virtual image
Up or down image
Relative size of image (bigger, smaller, same)
Other info
You will perform the experiment for a convex lens, concave lens, concave mirror, and convex mirror.
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