Light enters the curved surface of a semicircular block filled with an unknown liquid. This block is surrounded by air. The incident angle is 22.00. A screen is 4.30 cm away, and the refracted light strikes the screen 2.80 cm above the normal. Part A What is the angle of refraction? 02 = Submit Request Answer Part B What is the index of refraction of the unknown liquid? Circuit with current AEd n1: Submit Request Answer Part C At what angle would the light ray be totally internally reflected?