Prepping for Tuesday's lab

The purpose of our new lab on lenses and mirrors is to determine how the distance between object (candle) and lens, the object distance (do), is related to the distance between image and lens (di).

We will also determine the effect on the image's:  relative size (bigger, smaller, same size), orientation (up or down), and whether or not the image is real (can be projected onto a card/screen) or virtual (can NOT be projected onto a card/screen - but CAN be seen through the lens).

In other words:

How does do affect di, and the various characteristic of the image formed?

In this lab, you will record the following:

do (candle distance to lens or mirror) - this will be a measured distance
di (image distance to lens or mirror) - this will be a measured distance
up or down (is image right-side up or upside-down)
relative size (bigger, smaller, or same size as original flame)
real or virtual (whether or not image is on a screen or only visible through the lens)

You will perform this experiment for each of the following optics:

convex lens
concave lens
concave mirror
convex mirror

See the picture below: