3. Using Snell's law, prove that the refracted angle you obtained in step 2 is correct. Show your calculations below. 4. Complete the below table for several incident angles. Please use at least one decimal for all angles. Incident angle Angle of Refraction Angle of Reflection (Red light, from water to air) 30 45 60 Explain how refracted angles change with increasing incident angles. What is different when incident angle is 60? Explain in detail with respect to reflection and refraction. 5. Using Snell's law, calculate the critical angle for this case. Show calculations below and use at least two decimal points. 6. Is the critical angle you calculated the last incident angle that generates refraction in the simulation? Explain why or why not