A ray of light travels through air until it strikes the interface between the air and another medium. The incident ray makes an angle of 91 = 36.0 with the normal, as shown in the figure below. Upon passage into the second medium, the ray is refracted, emerging from the interface at an angle 92 with respect to the normal. Ai r Second medium (D (a) Suppose that the second medium is ice. What is the angle of refraction, 92 (in degrees)? (Enter your answer to at least one decimal place.) '1267 J (b) Suppose that the second medium is flint glass. What is the angle of refraction, 62, in this case (in degrees)? (Enter your answer to at least one decimal place.) '7 20.83 X Check that your calculator is set for angles in degrees. Double-check the index of refraction you have obtained for the second medium from your textbook or another reliable source. Be sure that you are using the sin and sin'1 functions in the correct order. Be sure that you have not swapped the positions of the two indices of refraction. (c) Finally, suppose that the second medium is glycerine. What is the angle of refraction, 62, in this case (in degrees)? (Enter your answer to at least one decimal place.) l3 23.5