b]1. A light beam coming from an underwater spotlight exits the water at an angle of 68° to the vertical. At what angle of incidence did it hit the air-water interface from below the surface? 2. snell's law n1sin[tex]\Theta[/tex]1=n2sin[tex]\Theta[/tex]2 3. sin[tex]\Theta[/tex]1=1.33(sin68) After doing this I took the inverse sin of it and it comes up as error on my calculator. I know it should be an easy question but I dont know where I am messing up.