1Figure 35-39 Lecture-26 Examples Example Problem-1 HW26-3. (HRW 35-21) In Fig. 35-39, sources A and B emit long-range radio waves of wavelength 400 m, with the phase of the emission from A ahead of that from source B by 90°. The distance rAfrom A to detector D is greater than the corresponding distance rBby 100 m. What is the phase difference of the waves at D?Solution: 21. Initially, source Aleads source Bby 90°, which is equivalent to 14 wavelength. However, source Aalso lags behind source Bsince rAis longer than rBby 100 m, which is1001 4m 400m=wavelength. So the net phase difference between Aand
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This note was uploaded on 04/21/2008 for the course PHYSIC 2 taught by Professor Kim during the Spring '08 term at Lehigh University .