1. The problem statement, all variables and given/known data If one immersed the prism in water (nw=1.33), would it be possible to obtain total internal reflection within the prism? Explain. 2. Relevant equations n1sin(θc)=n2sin(90o), where nglass=1.5. 3. The attempt at a solution I tried to solve for the unknown angle θc. Total internal reflection happens at θ1 >= θc. But I can't find which is n1 and n2, and which angle is which. And I am not even sure I am using the right equation for this problem. Is this problem having to do with calculation or related to theory or law? I would be very appreciated if you give me a hand.