1072_Physics ProblemsTechnical Physics

1072_Physics ProblemsTechnical Physics - Chapter 38 38.10...

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Chapter 38 413 38.10 (a) Double-slit interference maxima are at angles given by dm sin θλ = . For m = 0 , θ 0 0 . For m = 1 , 280 105015 .s i n . m m µθ µ bgb g = : 1 1 0179 103 == ° sin . . af . Similarly, for m = 2345 ,,, and 6, 2 21 0 . , 3 32 5 . , 4 45 8 . , 5 63 6 . , and 6 1 107 sin . nonexistent. Thus, there are 551 1 1 ++= directions for interference maxima . (b) We check for missing orders by looking for single-slit diffraction minima, at am sin = . For m = 1 , 0700 i n . m bg b g = and 1 45 8 .. Thus, there is no bright fringe at this angle. There are only nine bright fringes , at = ° ±° 0 210 325 636 ,. , . and . (c) II a = L N M M O Q P P max sin sin sin πθ λ 2 At 0, sin 1 and I I max . 100 . At 10 3 ., πµ a sin i n . . = ° ° 05015 0785 450 m m rad I I max sin . . . = ° L N M O Q P = 45 0 0811 2 . Similarly, at 21 0 a sin
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This note was uploaded on 12/14/2011 for the course PHY 203 taught by Professor Staff during the Fall '11 term at Indiana State University .

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