this experiment was divided into two parts. for the first part of the experiment, the
intentionally manipulated. this was the independent variable. the dependent variable measured was the
was intentionally manipulated. this was the
for the second part of the experiment, the
independent variable. the dependent variable measured was the

In a simplified model of the human eye, the aqueous and vitreous humors and the lens all have a refractive index of 1.40, and all the refraction occurs at the cornea, whose vertex is 2.60 cm from the retina. what should be the radius of curvature of the cornea such that the image of an object 40.0 cm from the cornea’s vertex is focused on the retina?

Suppose that f : rn → rm and that a ∈ k, where k is a connected subset of rn . suppose further that for each x ∈ k there exists a δx > 0 such that f(x) = f(y) for all y ∈ bδx (x). prove that f is constant on k; that is, f(x) = f(a) for all x ∈ k

If two parallel light rays hit a mirror, they will not be parallel to each other after they reflect.