沈阳药科大学2009年药学(英语)大学物理补考试题

沈阳药科大学试卷Test（B）级班四总分一二三1234555满分得分.Putcorrectansweoefollowingblank.（2scoresforeachblank,totalscore:）2.AuniformrodofmassMandlengthlcanpivotfreely(i.e.,weignorefriction)aboutahingewhichisattheendofrod.Therodisheldhorizontallyandthenreleased.Atthemomentofrelease,thelinearaccelerationof14-1沈阳药科大学试卷.Determinetheangularvelocity3.Aparallel-platecapacitorhasfixedcharges+QandQ.Theseparationoftheplatesisthendoubled.(a)Bywhatfactordoestheenergystoredintheelectricfieldchange?（4）;(b)Howmuchworkmustbedoneiftheseparationoftheplatesisdoubled(TheareaofeachplateisA)5.Asectionofaninfinitelylongcylindricalrodwithauniform+.Letusfindanexpressionforthemagnitudeoftheelectricfieldatadistancerfromtheaxisoftherod.(7)6.Redlightilluminatesadouble-slitsystemwith=0.2mm.Thefirst-ordermaximumoccursat=3.3mmonascreen1.0mfromtheslits.Whatisthewavelengthofredlight?(8)14-2沈阳药科大学试卷7.Apuddleofwaterhasathinfilmofgasolinefloatingonit.Abeamoflightisshiningperpendicularonthefilm.Ifthewavelengthoflightincidentonthefilmis560nmandtheindicesofrefractionofgasolineandwaterare1.40and1.33,respectively,whatistheminimumthicknessofthefilmtoseeabrightreflection?(9)8.Averyfinethreadisplacedbetweentwo600nmilluminatesthewedgeand15II．Choosethebestanswertocompleteeachofthefollowingquestion.(fillintheblankformwithcorrectanswerscoreforeachquestion,totalscore:）1234567891.AuniformthinrodofmassM(M=1kg)andlengthL(L=0.6m)issuspendedverticallyfromfrictionlesspivotfreelyatitsupper14-3沈阳药科大学试卷end.Andtherodisstillatfirst.Amassm(m=0.01g)ofbullettravelinghorizontallywithaspeedv(v=500m/s)strikestherodatthedistancel(l=0.36m)totheaxisandwithaspeedv(v=200m/s)22passingthroughrod.Whatisangularspeedoftherod?2.Asimpleharmonicoscillatorisundergoingoscillationswithanamplitude.Howfarisitfromitsequilibriumpositionwhenthekineticandpotentialenergiesareequal?(a)(c)2A3.AcapacitorconsistsofasetoftwoparallelplatesofareaAseparatedbyadistanced.Thiscapacitorisconnectedtoabatteryandchargeduntilitsplatescarrycharges+Qand-Q.Iftheseparationbetweentheplatesisdoubled,theelectricalenergystoredinthecapacitorwill4.Adouble-slitinterferenceexperimentisperformedintheair.Later,thesameapparatusisimmersedinbenzene(indexofrefraction,n=1.50),andtheexperimentisrepeated.Whentheapparatusisin14-4沈阳药科大学试卷(d)impossibletotellwithoutknowingthewavelengthoflightinuse.5.Aslit1.00mmwideisilluminatedbylightof=589nm.Weseeadiffractionpatternonascreen3.00maway.Whatisthedistancebetweenthefirsttwodiffractionminimaonthesamesideofcentraldiffractionmaximum?6.WhatisBrewster’sangleforthelightiscomingfromwatertoair?(waterwhoseindexofrefractionisn=1.33)7.TheX-raysaredirectedatacrystalwhoseatoms,lyinginplanes,arespaced0.245nmapart.Theseconddiffractionmaximumisrecordedat23.4˚.whatiswavelength(a)0.0486nm(c)0.0937nm(b)0.0973nm(d)0.973nm14-5沈阳药科大学试卷8.Inasingle-slitdiffractionexperiment,abeamofmonochromaticlightofwavelength550nmisincidentonaslitofwidth3.5µm.Ifthedistancebetweentheslitandthescreenis10.0m,howfaristhefirstdiffractionfromthecentralmaximum?9.Howfarawaycanahumaneyedistinguishtwocarheadlights2.0mapart?Consideronlydiffractioneffectsandassumeaneyediameterof5.0mmandawavelengththeof500nm?(a)8km10.Theconcentrationofcompoundsolutionofdragis0.75g/cmand3thespecificrotationis6.20cm/(g.dm)at20℃,usinga20-cmsample3tubeandsodiumlampforthemeasurement.WhatisanopticalrotationofthisdragIII．Decidewhetherthefollowingstatementsaretrueorfalse(T/F)(fillintheblankformwithcorrectan(reforeachquestion,totalscore:）14-6沈阳药科大学试卷91.Rotationalinertiaisdeterminedbythetotalmassandthedistributionofmasstotheaxis,butrotationalinertiarelativetodifferentaxisissame.2.Polarizationoflightproofsthatlightistransversewave.3.Ingeneral,thelightpathisgreaterthanthepathoflightpasses.4.Intheexperimentforinterferenceusingtheconceptofairwedge,thepointwheretheglassplatestouchinanairwedgeisadarkfringe.5.Densityofelectricenergyisproportionaltothesquareofelectricfield.Sothemoretheelectricfield,thelessistheenergyofelectricfield.6.Wavescarryenergyfromspacetospacewithoutmatterbeingcarried.Intensityisproportionaltothesquareofamplitude.7.Effectsofdielectricspolarizinggeneratespolarizationchargesandpolarizationfieldwithinmedium.Sotheeffectofdielectricistostrengthentheoriginalelectricfield.8.Inasingle-slitdiffractionexperiment,thecentralmaximumisbroadenedifthewavelengthoflightincreased.14-7沈阳药科大学试卷9.Thedirectionoftheelectricfieldatalocationjustoutsideaconductor10.Astandingwaveisnotwavesinceitdoesnotmove(lostthefeatureofwaves).Ithasacertainwave-pattern.1.(totalscore:10)AuniformthinrodofmassMandlengthlissuspendedverticallyfromfrictionlesspivotfreelyatitsupperend.Andtherodisstillatfirst.Amassmtravelinghorizontallywithaspeedvstrikestheendofrodandstickinit.Whatistheangular0momentumoftherodafterstriking?(10scores)oaL014-8沈阳药科大学试卷2.(totalscore:10)nYoung’sexp.onochromaticlightofwavelength550nmfallsonslits.Ifoneofslitsiscoveredupbyamedialayer(n=1.58),theoriginalcentralbrightfringewillmovetothepositionof7-orderbrightfringe,whatisthethicknessofthelayer?(10scores)14-9沈阳药科大学试卷3.(totalscore:10)AparticleisinSHMalongxaxis,theamplitudeA=0.06m,theperiodT=2s.Wheninitialtimet=0,aparticleisat0(1)TrytofindtheexpressionofthisSHM;(3scores)(2)Whenthisoscillationmovesalongpositivexdirectionwithvelocityv=2m/sandequilibriumoftheparticleisatdisplacement014-10沈阳药科大学试卷4.(totalscore:10)Lightofwavelength600nmincidentnormallyonadiffractiongrating.The2th-orderbrightfringeoccursatanglegivenbysin=0.20,andthe5th-ordermaximaaremissing.Calculate(a)Whatistheseparationbetweenadjacentslits?(3scores)(b)Whatistheslit-widthofthisgrating?(2scores)(c)Howmanyordersofintensitymaximacanbeobservedbythisgrating,whatarethey?(5scores)14-11沈阳药科大学试卷5.(totalscore:10)AconductingspherewithpositivechargeradiusR，1surroundedbyaconductingshellwithoutchargeoriginally，innerradiusRandexternalradiusR.Thedielectricmaterialofdielectric23constantkfillsallthespacebetweenthesphere