On a vacation, you are scuba-diving and using a diving mask that has a
face plate and that bulges outward with a radius of curvature of 0.50 m. As a
result, a convex spherical surface exists between the water and the air in the
mask. A fish swims by you 2.5 m in front of your mask. (a) How far in front of
the mask does the fish appear to be?
The Attempt at a Solution
The viewer is obviously inside the diving mask, so we make everything with respect to that.
n1=1, n2=1.33, s=-2.5 (since the object is located on the other side of the faceplate), r=.5. That however is not getting me the right answer. What am I doing wrong?