1. The problem statement, all variables and given/known data A small underwater pool light is 1 meter below the surface of a swimming pool. What is the radius of the circle of light on the surface, from which light emerges from the water? 2. Relevant equations Snell's Law Fermat's Principle 3. The attempt at a solutionI have no idea about how to approach the first part because we're not given the radius of the light.