Question: A flint glass plate (n = 1.66) rests on the bottom of an aquarium tank. The plate is 8.00 cm thick (vertical dimension) and covered with water (n = 1.33) to a depth of 12.4 cm.
Part I: Calculate the apparent thickness of the plate as viewed from above the water. (Assume nearly normal incidence of light rays.)
______cm
Please keep answer simple and short and please don't copy and paste.