Concept explainers
Why does the arc of a rainbow appear with red on top and violet on the bottom.

Answer to Problem 1CQ
Refraction through larger angles makes violet to appear at the bottom and the refraction through smaller angle makes red to appear on the top of the arc.
Explanation of Solution
The dispersion of light into a spectrum is most clearly visible in a rainbow. The phenomena behind the formation the rainbow is refraction, reflection and total internal reflection.
When a ray of light strikes a ray of light, it is first refracted at the front surface, with the violet light deviating the most and the red light the least. At the back surface, it undergoes reflection and comes to the front surface where the refraction occurs again. As violet refracts through larger angles, it comes at the bottom of the arc.
Conclusion:
Thus, the refraction through larger angles makes violet to appear at the bottom and the refraction through smaller angle makes red to appear on the top of the arc.
Want to see more full solutions like this?
Chapter 22 Solutions
ACP COLLEGE PHYS 1101/1102 BUNDLE
- An electron, traveling at a speed of 5.60x10° m/s, strikes the target of an X-ray tube. Upon impart, the eletion decelerates to one-third of it's original speed, with an X-ray photon being emitted in the process. What is the wavelength of the photon? m.arrow_forwardCan you help me solve this 2 question and teach me what we use to solve thisarrow_forwardYou are working during the summer at a company that builds theme parks. The company is designing an electromagnetic propulsion system for a new roller coaster. A model of a substructure of the device appears in the figure below. Two parallel, horizontal rails extend from left to right, with one rail behind the other. A cylindrical rod rests on top of and perpendicular to the rails at their left ends. The distance between the rails is d and the length of the rails is L. The magnetic field vector B points vertically down, perpendicular to the rails. Within the rod, the current I flows out of the page, from the rail in the back toward the rail in the front. The rod is of length d = 1.00 m and mass m = 0.700 kg. The rod carries a current I = 100 A in the direction shown and rolls along the rails of length L = 20.0 m without slipping. The entire system of rod and rails is immersed in a uniform downward-directed magnetic field with magnitude B = 2.30 T. The electromagnetic force on the rod…arrow_forward
- Based on the graph, explain how centripetal force is affected when the hanging mass changes. Does your graph verify the relationship in the equation r = x^i + y^j = r cos ωt I + r sin ωt^j?arrow_forwardCan you help me to solve this two questions can you teach me step by step how to solve it.arrow_forwardGiven: ruler 11.56 g, small washer 1.85 g each, large washer 24.30g each Use the data in Data Tables 4 and 5 to experimentally determine the mass of your ruler. Use one of your 2 trials with 1 small washer at 0 cm, one of your 2 trials with 2 small washers at 0 cm, and one of your 2 trials with 3 small washers at 0 cm to find three experimental values for the mass of the ruler. How do you experimentalls determine the mass?arrow_forward
- Compare the 3 experimental masses of your ruler to the measured mass of your ruler (Data Table 1) by calculating the percent error for each experimental value. Which trial provided the best data for determining the mass of the ruler? Please help, I am not sure how to calculate this. Thanks!arrow_forwardPlease help, everytime I try to input the data only one point shows on the graph. Please graph unsing centripetal force, Fc, versus V E2 from Activity 1. Include a line of best fit and record the equation of the line. Thank you!arrow_forwardPlease help, everytime I try to input the data only one point shows on the graph. Graph of centripetal force, Fc, versus V E2 from Activity 1. Include a line of best fit and record the equation of the line.arrow_forward
- Based on your graph, explain how centripetal force is affected when the hanging mass changes. Does your graph verify the relationship in the equation r = x^i + y^j = r cos ωt I + r sin ωt^j?arrow_forwardDid your experiment results in Data Table 3 verify, to within a reasonable experimental error, the condition of equilibrium of Equation 6: Στanti-clockwise = Στclockwise? Support your response with experimental data. My data shows that they are not equal to each other. So what does this mean? Thanks!arrow_forwardPlease help, everytime I try to input the data only one point shows on the graph. Graph of centripetal force, Fc, versus V E2 from Activity 1. Include a line of best fit and record the equation of the line.arrow_forward
- Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningAn Introduction to Physical SciencePhysicsISBN:9781305079137Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar TorresPublisher:Cengage LearningGlencoe Physics: Principles and Problems, Student...PhysicsISBN:9780078807213Author:Paul W. ZitzewitzPublisher:Glencoe/McGraw-Hill
- University Physics Volume 3PhysicsISBN:9781938168185Author:William Moebs, Jeff SannyPublisher:OpenStaxCollege PhysicsPhysicsISBN:9781938168000Author:Paul Peter Urone, Roger HinrichsPublisher:OpenStax College





