Is the image produced by a plane mirror real or virtual? Erect or inverted? Larger, smaller or the same size as the object? Does your answer depend on where the object is located? If it does, what is the answer for each possibility?
Same questions for a concave mirror.
Same questions for a convex mirror.
Same questions for a positive lens.
Same questions for a negative lens.
Do you know the ray tracing rules for the 4 types of situations: concave or convex mirror, positive or negative lens
What is the paraxial ray approximation?
What is the relationship between the focal length of a lens and its strength in diopters?
What is the relationship between the radius of curvature of a mirror and its focal length?
If two thin lenses are touching (or nearly touching), what is the equivalent focal length of the pair?
What are the definitions of the five primary aberrations: spherical aberration, coma, astigmatism, curvature of field and distortion?
What is chromatic aberration?
What is the meaning of magnification? How does this quantity vary with the focal length of a lens? How does this vary with the location of the object?
What is the meaning of field of view? How does this quantity vary with the focal length of a lens?
What is the meaning of depth of field? How does this quantity vary with the diameter of a lens? How does it vary with the f/number?
What is the trade-off between f/number and exposure time in a picture? Why would you make such a trade-off? How do these quantities depend on the speed (ASA number) of the film?
What is the meaning of the near-point of the eye, and what is its approximate value?
What are the rods, the cones and the fovea of the eye?
What are the different sensitivities of rods and cones?