Answer Happy

III. Two wires carry the same amount of current out of the page as shown in the figure below. At point P equidistant from each wire and along a line connecting the center of each wire, can you determine the value of the total magnetic field with the information given? If so, what is the value? Explain your reasoning in words as well as using vector arrows in the figure. 1 IV. Two sources of coherent and in-phase waves of wavelength 2.20m are located as shown in the figure. Determine whether there is constructive or destructive interference occurring at observation point P. Be clear about the logic you use and explain each step of your reasoning. P 12.5m 7.00m S S, V. If the critical angle for total internal reflection at an oilwater interface (ray initially in the oil) is 56.2 and the index of refraction of water is 1.33, what is the index of refraction of the oil?