A horizontal air–glass interface is drawn with the glass region hatched below. A blue incident ray reaches the interface from air at θ = 69.8° from the normal (n_air = 1.00, n_glass = 1.850). Draw the red refracted ray inside the glass according to Snell's law, extending it to the image boundary. The angle annotation should be removed. Only modify what the task requires; keep the background and any other element unchanged. Output 1 image showing the incident and refracted rays.