4. [-/2 Points] DETAILS MY NOTES SERPSE10 36.3.0P.013. ASK YOUR TEACHER PRACTICE ANOTHER Two narrow, parallel slits separated by 0.850 mm are illuminated by 580-nm light, and the viewing screen is 2.60 m away from the slits. (a) What is the phase difference between the two interfering waves on a screen at a point 2.50 mm from the central bright fringe? \\| rad (b) What is the ratio of the intensity at this point to the intensity at the center of a bright fringe? I Need Help? [l e Submit Answer 5. [-/1Points] DETAILS MY NOTES SERPSE10 36.3.P.015. ASK YOUR TEACHER PRACTICE ANOTHER Determine the resultant of the two waves E1 = 4,20 sin(100 xt) and .-'.:2 = 8.40 sin(100 wt + m/2). E 1 2 + E =' Need Help? [IiRssau] Submit Answer 6. [-/1Points] MY NOTES SERPSE10 36.5.0P.014. ASK YOUR TEACHER PRACTICE ANOTHER A thin film of oil (n = 1.27) is located on smooth, wet pavement. When viewed perpendicular to the pavement, the film reflects most strongly red light at 640 nm and reflects no yellow light at 548 nm. How thick is the oil film? nm Need Help? [l e Submit