Wave Optics311(a) The path difference is then ()()3sin0.150 mm sin 0.7371.9310mm1.93 mdδθµ−==°=×=(b) 691.9310m3.0064310mλδ−−=×=×(c) Since the path difference for this position is a whole number of wavelengths, the waves interfere constructively and produce a maximum at this spot. 24.11The distance between the central maximum (position of A) and the first minimum is 0122mLLymdd==+=Thus, 3.00 m150 m11.3 m22 20.0 mLdy=24.12 The path difference in the two waves received at the home is 230.0 kmd=−where dis defined in the figure at the right. For minimum cloud height and (hence minimum path difference) to yield destructive interference, 2=giving min15.1 kmd=130.0 km
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