人教版高中物理选修11高二上学期期中考试物理中美班试题无答案.docx
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人教版高中物理选修11高二上学期期中考试物理中美班试题无答案.docx
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人教版高中物理选修11高二上学期期中考试物理中美班试题无答案
高中物理学习材料
(灿若寒星**整理制作)
Planck’sconstant=6.63×10-34Jsor4.14×10-15eVs
speedoflight=3.00×108ms-1
chargeonelectron=–1.60×10-19C
massofelectron=9.11×10-31kg
1、Alightbeaminairhitsasheetofcrownglassatanangleof30.0°.Atwhatangleisthelightbeamrefracted?
(n2=1.52)
2、Anobjectisplaced32.0cmfromaconvexlensthathasafocallengthof8.0cm.
a.Whereistheimage?
b.Iftheobjectis3.0cmhigh,howtallistheimage?
c.Whatistheorientationoftheimage?
3、AphysicsteacherhasapparatustoshowYoung’sdoubleslitexperiment.TheapparatusisshowninFigurebelow,Thepatternofbrightanddarkbandsisobservedonthescreen.Whichoneofthefollowingactionswillincreasethedistance,∆x,betweendarkbandsinthisdoubleslitinterferencepattern?
A.decreasetheslitwidth
B.decreasetheslitseparation
C.decreasetheslitscreendistance
D.decreasethewavelengthofthelight
4、、Inanexperiment,monochromaticlaserlightofwavelength600nmshinesthroughanarrowslit,andtheintensityofthetransmittedlightisrecordedonthescreensomedistanceawayasshowninFigure2a.TheintensitypatternseenonthescreenisshowninFigure2b.
Whichoneoftheintensitypatterns(A-D)belowbestindicatesthepatternthatwouldbeseenifawiderslitwasused?
5、StudentshavesetupanexperimentsimilartothatofEnglishphysicistThomasYoung.Thestudents’experimentusesmicrowavesofwavelengthλ=2.8cminsteadoflight.ThebeamofmicrowavespassesthroughtwonarrowslitsshownasS1andS2inFigurebelow.Thestudentsmeasuretheintensityoftheresultingbeamatpointsalongthelineshownanddeterminethepositionsofmaximumintensity.TheseareshownasfilledcirclesandmarkedP0,P1...
Whatisthedifferenceinlength(S2P2-S1P2)whereP2isthesecondmaximumawayfromthecentralaxis.
6、Astep-uptransformerhas80turnsonitsprimarycoiland1200turnsonitssecondarycoil.Theprimarycircuitissuppliedwithanalternatingcurrentat120V.
a.Whatvoltageisbeingappliedacrossthesecondarycircuit?
b.Thecurrentinthesecondarycircuitis2.0A.Whatcurrentisintheprimarycircuit?
c.Whatarethepowerinputandoutputofthetransformer?
7、Acopperwireofinsignificantresistanceisplacedinthecenterofanairgapbetweentwomagneticpoles,asshowninFigurebelow.Thefieldisconfinedtothegapandhasastrengthof1.9T.
a.Determinetheforceonthewire(directionandmagnitude)whentheswitchisopen.
b.Determinetheforceonthewire(directionandmagnitude)whentheswitchisclosed.
c.Determinetheforceonthewire(directionandmagnitude)whentheswitchisclosedandthebatteryisreversed.
d.Determinetheforceonthewire(directionandmagnitude)whentheswitchisclosedandthewireisreplacedwithadifferentpiecehavingaresistanceof5.5Ω
8、Youobservecoloredringsonapuddleandconcludethattheremustbeanoilslickonthewater.Youlookdirectlydownonthepuddleandseeayellow–green(λ=555nm)region.Iftherefractiveindexofoilis1.45andthatofwateris1.33,whatistheminimumthicknessofoilthatcouldcausethiscolor?
9、Tworesistors,47.0Ωand82.0Ω,areconnectedinseriesacrossa45.0Vbattery.
a.Whatisthecurrentinthecircuit?
b.Whatisthevoltagedropacrosseachresistor?
c.Ifthe47.0Ωresistorisreplacedbya39.0Ωresistor,willthecurrentincrease,decrease,orremainthesame?
d.Whatisthenewvoltagedropacrossthe82.0Ωresistor?
10、RefertoFigurebelowtoanswerthefollowingquestions.
a.Whatshouldtheammeterreadingbe?
b.Howmuchpowerisdeliveredtotheresistor?
11、Thefollowingdiagramshowsaparticle,withinitialvelocityv,abouttoenterauniformmagneticfield,B,directedoutofthepage.
aWhattypeofparticlecouldfollowpathA?
bIntermsofF,whatwouldbethemagnitudeofthemagneticforceifthevelocityisdoubledandfieldstrengthremainsthesame?
12、Thefollowinginformationappliestoquestions2and3.Thediagramsbelowshowacurrentloopwithitsplaneparalleltothepage.
aWhatisthedirectionofthemagneticfieldinsidetheloopindiagram(a)?
bWhatisthedirectionofthemagneticfieldinsidetheloopofdiagram(b)?
13、InaMillikanoil-dropexperiment,adrophasbeenfoundtoweigh2.4×10-14N.Theparallelplatesareseparatedbyadistanceof1.2cm.Whenthepotentialdifferencebetweentheplatesis450V,thedropissuspended,motionless.
a.Whatisthechargeontheoildrop?
b.Iftheupperplateispositive,howmanyexcesselectronsareontheoildrop?
14、Aphotocellusesasodiumcathode.Thesodiumcathodehasathresholdwavelengthof536nm.
a.FindtheworkfunctionofsodiumineV.
b.Ifultravioletradiationwithawavelengthof348nmfallsonsodium,whatistheenergyoftheejectedelectronsineV?
15、Anelectronisacceleratedbyapotentialdifferenceof75V.WhatisitsdeBrogliewavelength?
16、Thefollowingenergylevelsforatomichydrogenapplytoquestions1–4.
aCalculatethefrequencyofphotonsemittedwhenelectronsinatomichydrogenmakethetransitionfromthefirstexcitedstatetothegroundstate.
bWhatisthewavelengthoflightthatisemittedwhentheelectroninatomichydrogengoesfromthesecondexcitedstatetothegroundstate?
cWhatistheminimumenergy(ineV)requiredtoioniseahydrogenatomfromthegroundstate?
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