8_Ch 24 College Physics ProblemCH24 Wave Optics

8_Ch 24 College Physics ProblemCH24 Wave Optics - 310...

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310 CHAPTER 24 (b) The next minimum encountered is the 2 m = minimum; and at that point, 15 sin 22 dm δ θλ  == + =   λ or () 11 555 .7 m 5 sin sin 3 0 0 m d θ −− ( 27.7 = ° Then, ) 1000 m tan27.7 524 y m = so the car must travel an additional 124 m 24.8 In a double-slit interference pattern the distance from the central maximum to the position of the order bright fringe is given by th m m ym L d = where d is the distance between the splits and L is the distance to the screen. Thus, the spacing between the first- and second-order bright fringes is ( ) 9 3 600 10 m 2.50 m [2 1] 1 0.0300 m 3.00 cm 0.050 10 m L d  ×  = − = = = ×  21 yy y ∆= − 24.9 The path difference in the two waves received at the home is
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