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原子物理 知到智慧树网课答案

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原子物理-知到答案、智慧树答案第一章单元测试1、问题:Theenergyscaleofatomis().选项:A:TeVB:GeVC:eVD:MeV答案:【eV】2、问题:Thedensityscaleofatomis()选项:A:1010g/cm3B:1g/cm3C:1015g/cm3D:102g/cm3答案:【1g/cm3】3、问题:WhodidproposethatthematterwasindivisibleinancientGreece?()选项:A:PlatoB:AristotleC:DemocracyD:Archimedes答案:【Democracy】4、问题:WhodidfirstlyshowthePeriodictable?()选项:A:MendeleevB:AvogadroC:ProustD:Faraday答案:【Mendeleev】5、问题:Howmanyelementsarediscoveredupto2019?()选项:A:118B:117C:115D:112答案:【118】6、问题:WhatwasfoundbyRoentgenin1895?()选项:A:ProtonB:neutronC:XrayD:Electron答案:【Xray】7、问题:Thelawofblack-bodyradiationwasgivenin1900by()?选项:A:PlankB:BoltzmannC:RutherfordD:Bohr答案:【Plank】8、问题:WhichmodelcanexactlysolvetheHydrogensystem?()选项:A:BohrmodelB:SchrodingerequationC:RutherfordmodelD:Diracequation答案:【Diracequation】9、问题:Whichfieldisnotrelatedtoatomicphysics?()选项:A:PlasmaphysicsB:AstrophysicsC:LiteratureD:Environment答案:【Literature】10、问题:WhodidnotjointheSolvayconferenceheldin1927?()选项:A:EinsteinB:PauliC:FermiD:Schrodinger答案:【Einstein】第二章单元测试 1、问题:StatethemassofAvogadro’snumberofatomsforCopper().选项:A:127.10gB:63.55kgC:23.22gD:63.55g答案:【63.55g】2、问题:Themassofasingleironatomis9.3×10–23g.Determinethenumberifironatomsinregularcubethatmeasuresexactly10cmonanedge.Thedensityofironis7.86g/cm3()选项:A:3.5×1025B:8.5×1025C:7.5×1024D:4.2×1026答案:【8.5×1025】3、问题:Themassofaprotonis()选项:A:0.511MeVB:1.673×10-24gC:3.344×10-27kgD:10.07u答案:【1.673×10-24g】4、问题:InRutherfordatomicmodelalphaparticleswerestrokedon()选项:A:titaniumB:aluminumC:silverD:gold答案:【gold】5、问题:Foraluminum(Z2=13)andgold(Z2=79)targets,whatistheratioofαparticlescatteringatanyangleforequalnumbersofscatteringnucleiperunitarea?()选项:A:134.5B:0.03C:36.93D:1.47答案:【36.93】6、问题:Foran8.0-MeVαparticlescatteringfromagoldatom(Z=79)ofradius0.135nm,thelargestscatteringangle,θis?()选项:A:B:C:D:答案:【】7、问题:Accordingtostructureofatomelectronshouldfallin()?选项:A:nucleusB:outerenvironmentC:shellD:space答案:【nucleus】8、问题:WhichofthefollowingisnotavalidconclusionfromRutherford’salphaparticlescatteringexperiment?()选项:A:TheatomismainlyemptyspaceB:ThenucleusmustbepositivelychargedC:ThenucleusmustbeverysmallcomparedtotheatomD:Themassoftheatomismostlyconcentratedinthenucleus答案:【Thenucleusmustbepositivelycharged】9、问题:A5.0-MeValphaparticleapproachesagoldnucleuswithanimpactparameterof2.6×10-13m.Throughwhatanglewillitbescattered?()选项:A:10°B:PlasmaphysicsC:AstrophysicsD:Environment答案:【10°】10、问题:Whatfractionofabeamof7.7-MeValphaparticlesincidentuponagoldfoil3.0×10-7mthickisscatteredbylessthan1°?()选项:A:1.35B:0.67C:0.05D:0.84答案:【0.84】 第三章单元测试1、问题:Whenanelectronjumpsfromitsorbittoanotherorbit,energyis().选项:A:absorbedB:emittedC:noeffectD:both答案:【both】2、问题:Whatdeterminesthedifferenceinenergybetweentwoenergylevels?()选项:A:distancebetweenthetwoenergylevelsB:numberofelectronsintheenergylevelsC:distancefromthenucleusD:numberofvalenceelectrons答案:【distancebetweenthetwoenergylevels】3、问题:AccordingtoBohrmodelofhydrogenatom,theradiusofstationaryobitcharacterizedbytheprincipalquantumnumbernisproportional()选项:A:n2B:nC:1/nD:1/n2答案:【n2】4、问题:Inhydrogenatomtheangularmomentumoftheelectroninthelowestenergystate()选项:A:2hB:2p/hC:h/2pD:h/p答案:【h/2p】5、问题:Theratioofthespeedoftheelectroninthegroundstateofhydrogenatomtothespeedoflightis()选项:A:2/137B:1/237C:1/2D:1/137答案:【1/137】6、问题:Iftheelectroninhydrogenatomjumpsfromthethirdorbittosecondorbit,thewavelengthofthemittedradiationisgivenby()选项:A:36/5RB:5/RC:5R/36D:R/6答案:【36/5R】7、问题:Aprotonandanelectron,bothatrestinitially,combinetoformahydrogenatominthegroundstate.Asinglephotonisemit-tedinthisprocess.Whatisitswavelength?()选项:A:91.2nmB:15mmC:49fmD:357nm答案:【91.2nm】8、问题:Abeamofelectronsbombardsasampleofhydrogen.ThroughwhatpotentialdifferencemusttheelectronshavebeenacceleratedifthefirstlineoftheBalmerseriesistobeemitted?()选项:A:569.3VB:35.7VC:0.6VD:12.1V答案:【12.1V】9、问题:ThelongestwavelengthintheLymanseriesis121.5nmandtheshortestwavelengthintheBalmerseriesis364.6nm.Findthelongestwavelengthoflightthatcouldionizehydrogen.()选项:A:49.4fmB:91.13nmC:74.5mmD:8.3nm答案:【91.13nm】10、问题:WhatistheshortestwavelengthpresentintheBrackettseriesofspectrallines?()选项:A:569.34nmB:327.89nmC:1.46mmD:91.13nm答案:【1.46mm】第四章单元测试1、问题:Theenergyquantaofanatomicoscillatorthatemitsandabsorbsorangelightwhosefrequencyis5.00×1014Hzis.().选项:A:7.13eV B:12.89eVC:3.89×10-19JD:2.08eV答案:【2.08eV】2、问题:Ultravioletlightofwavelength350nmandintensity1.00W/m2isdirectedatapotassiumsurface.Themaximumkineticenergyofthephotoelectronsis()选项:A:17.6eVB:4.42×10-19JC:3.5eVD:6.9eV答案:【。

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