2.) (7pnts) Light of wavelength 575 nm strikes the face of an acrylic block at an incident angle of 38. The speed of light in the acrylic is 2.05x 10 m/s. (a) What range of incident angles would be needed for total internal reflection to occur at the acrylic/water interface? (b) Determine if the light exits at the bottom or reflects. If it exits, determine the angle of refraction. acrylic air 20 water