Chapter 14 Interference and Diffraction

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Chapter 14. Interference and Diffraction Superposition of Waves ........................................ ........................................ .... 14-2. Young's Double-Slit Experiment ........................................ ............................. 14-4. Example : Double-Slit 14-7. Intensity Distribution ........................................ ........................................ ........ 14-8. Example : Intensity of Three-Slit Interference ........................................ .... 14-11. 14-13. Single-Slit 14-13. Example : Single-Slit Diffraction ........................................ ........................ 14-15. Intensity of Single-Slit Diffraction ........................................ ......................... 14-16. Intensity of Double-Slit Diffraction 14-19.

Figure 14.2.2 shows the ways in which the waves could combine to interfere constructively or destructively. Figure 14.2.2 Constructive interference (a) at P, and (b) at P1. (c) Destructive interference at P2. The geometry of the double-slit interference is shown in the Figure 14.2.3.