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200832SCIENCE&TECHNOLOGYINFORMATION。,,。,,。,。1.11,S1S2,S1S2d,(Ox)O,P,S1S2Pdsinθ。,(),;,。,,。。:dsinθ=±2kλ2=±kλ(k=0,1,2,…)dsinθ=±(2k+1)λ2(k=0,1,2,…):dsinθ=2kλ2=kλ(k=0,±1,±2,…)dsinθ=(2k+1)λ2(k=0,±1,±2,…):dsinθ=±2kλ2=±kλ(k=0,1,2,…)dsinθ=±(2k-1)λ2(k=1,2,3,…),λ,k。,,。,。。:dsinθ=±(2k+1)λ2(k=0,1,2,…)2。2:dsinθ=(2k+1)λ2(k=0,±1,±2,…)3。3:dsinθ=±(2k-1)λ2(k=1,2,3,…)4。4(030024)【】,、,。。【】;;;Theexpressionsofthefringeprogressionindouble-slitinterferenceandsingle-slitdiffractionWangAizhong(Dept.ofPhysics,TaiyuanUniversityofScienceandTechnology,Taiyuan030024,China)【Abstract】Someexpressionsofthefringedistributionprogression,whichareaboutYoung’sdoubleslitinterferenceandFraunhofersingleslitdiffractioninsomeuniversityphysicstextbooks,areanalysedanddiscussedinthispaper.Theresultsshowthatsomeexpressionsareinexactandimperfect,evenincorrect.Theauthorsuggeststhattheexpressionofthefringedistributionprogressionshouldbeunityandstandardizationintheuniversityphysicstextbooks.【Keywords】Young’sdouble-slitinterference;Fraunhofersingle-slitdiffraction;fringeprogression;universityphysics○○57200832SCIENCE&TECHNOLOGYINFORMATION●,(2)0(+0-0),(0),。,(3)0,(0),(0)-1,。,4,0,1。,、,。,,。2.55,a,(Ox)O,P,A、BPasinθ。,AB,P;AB,P。,AB,。。:asinθ=2kλ2=kλ(k=±1,±2,±3,…)asinθ=(2k+1)λ2(k=±1,±2,±3,…):asinθ=±2kλ2=±kλ(k=1,2,3,…)asinθ=±(2k+1)λ2(k=1,2,3,…),λ,k。,,。,,。。:asinθ=(2k+1)λ2(k=±1,±2,±3,…)∴k=±1asinθ=3λ2k=-1asinθ=-λ2k=+2asinθ=5λ2k=-2asinθ=-3λ2…………-λasinθλ,6。,+1,-1,-1-2。,-1,-1,,。,。6:asinθ=±(2k+1)λ2(k=1,2,3,…)7。7,,,。3.,,。,,。,,,。,、,、。【】[1],.[M].:,1998.[2].[M].:,1999.[3].[M].:,1994.[4].[M].:,2002.[5].[M].:,2006.:(1962—),,,,。[:]○○58
本文标题:双缝干涉与单缝衍射明暗条纹级次的设定
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