1070_Physics ProblemsTechnical Physics

1070_Physics ProblemsTechnical Physics - Chapter 38 P38.4...

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Chapter 38 411 P38.4 For destructive interference, sin . . θ λλ == = = m aa 500 0139 cm 36.0 cm and 798 . d L = tan gives dL ° = tan . tan . . 650 0912 m m af d = 91 2 . cm . P38.5 If the speed of sound is 340 m/s, λ = v f 340 650 0523 1 ms s m .. Diffraction minima occur at angles described by am sin θλ = 110 1 0523 1 .s i n . m a f = 1 28 4 . 2 0523 2 i n . m a f a f = 2 72 0 . 3 0523 3 i n . m a f = 3 nonexistent Maxima appear straight ahead at 0 ° and left and right at an angle given approximately by 15 0523 i n. . m a f x = x ≈° 46 . There is no solution to a sin . = 2 5 , so our answer is already complete, with
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