Chapter 35, Problem 7Q

Figure 35-25 shows two sources S₁ and S₂ that emit radio waves of wavelength λ in all directions. The sources are exactly in phase and are separated by a distance eqal to 1.5λ. The vertical broken line is the perpendicular bisector equal to 1.5λ. The vertical broken line is the perpendicular bisector of the distance between the sources. (a) If we start at the indicated start point and travel along path 1, does the interference produce a maximum all along the path, a minimum all along the path, or alternating maxima and minima? Repeat for (b) path 2 (along an axis through the sources) and (c) path 3 (along a perpendicular to that axis).

Figure 35-25 Question 7.