Chapter 14 Interference and Diffraction
The superposition of the waves is depicted in Figure 14.1.2. Figure 14.1.2 Superposition of two sinusoidal waves. We see that the wave has a maximum amplitude when sin(x+φ)=1, or x =−π/2 φ. The interference there is constructive. On the other hand, destructive interference occurs at x =−π φ=2.61 rad, wheresin(π) =0. 14-3
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