Homework Statement
a fish at a depth d underwater.Takes the index of refraction of water as 4/3 show that when the fish is viewed at an angle of refraction θ , the apparent depth z of the fish is
z = (3d cosθ )/ √ (7 + 9 cos2 θ)
Homework Equations
snell's law
n1 x sin θ1 = n2 x sin θ2
The...