原子物理智慧樹(shù)知到課后章節(jié)答案2023年下南開(kāi)大學(xué)

原子物理智慧樹(shù)知到課后章節(jié)答案2023年下南開(kāi)大學(xué)南開(kāi)大學(xué)

第一章測(cè)試

Theenergyscaleofatomis(

).

A:MeVB:

GeVC:

eVD:

TeV

答案:

eV

Thedensityscaleofatomis(

)

A:

B:C:

D:

答案:

WhodidproposethatthematterwasindivisibleinancientGreece?(

)

A:PlatoB:AristotleC:ArchimedesD:Democracy

答案:Democracy

WhodidfirstlyshowthePeriodictable?

(

)

A:Avogadro

B:Mendeleev

C:Faraday

D:Proust

答案:Mendeleev

Howmanyelementsarediscoveredupto2019?(

)

A:117B:112

C:118D:115

答案:118

WhatwasfoundbyRoentgenin1895?(

)

A:Proton

B:ElectronC:Xray

D:neutron

答案:Xray

Thelawofblack-bodyradiationwasgivenin1900by(

)?

A:RutherfordB:BohrC:BoltzmannD:Plank

答案:Plank

WhichmodelcanexactlysolvetheHydrogensystem?(

)

A:Rutherfordmodel

B:Diracequation

C:SchrodingerequationD:Bohrmodel

答案:Diracequation

Whichfieldisnotrelatedtoatomicphysics?(

)

A:LiteratureB:AstrophysicsC:Plasmaphysics

D:Environment

答案:Literature

WhodidnotjointheSolvayconferenceheldin1927?(

)

A:Fermi

B:Pauli

C:EinsteinD:Schrodinger

答案:Fermi

第二章測(cè)試

StatethemassofAvogadro’snumberofatomsforCopper(

).

A:127.10gB:23.22gC:63.55kgD:63.55g

答案:63.55g

A:

B:C:

D:

答案:

Themassofaprotonis(

)

A:

B:

C:

D:

答案:

InRutherfordatomicmodelalphaparticleswerestrokedon

(

)

A:titaniumB:aluminum

C:silverD:gold

答案:gold

Foraluminum(Z

=13)andgold(Z

=79)targets,whatistheratioofαparticlescatteringatanyangleforequalnumbersofscatteringnucleiperunitarea?(

)

A:0.03

B:36.93C:134.5D:1.47

答案:36.93

Foran8.0MeVαparticlescatteringfromagoldatom(Z=79)ofradius0.135nm,thelargestscatteringangle,θis?(

)

A:B:C:

D:

答案:

Accordingtostructureofatomelectronshouldfallin(

)?

A:shell

B:spaceC:nucleusD:outerenvironment

答案:nucleus

WhichofthefollowingisnotavalidconclusionfromRutherford’salphaparticlescatteringexperiment?(

)

A:Thenucleusmustbepositivelycharged

B:Themassoftheatomismostlyconcentratedinthenucleus

C:ThenucleusmustbeverysmallcomparedtotheatomD:Theatomismainlyemptyspace

答案:Thenucleusmustbepositivelycharged

A:15°B:12°C:10°

D:

8°

答案:10°

A:0.67

B:0.05

C:0.84D:1.35

答案:0.84

第三章測(cè)試

Whenanelectronjumpsfromitsorbittoanotherorbit,energyis(

).

A:noeffect

B:emitted

C:bothD:absorbed

答案:both

Whatdeterminesthedifferenceinenergybetweentwoenergylevels?(

)

A:distancebetweenthetwoenergylevelsB:numberofelectronsintheenergylevels

C:numberofvalenceelectronsD:distancefromthenucleus

答案:distancebetweenthetwoenergylevels

AccordingtoBohrmodelofhydrogenatom,theradiusofstationaryobitcharacterizedbytheprincipalquantumnumbernisproportional(

)

A:1/nB:

n

C:D:

答案:

Inhydrogenatomtheangularmomentumoftheelectroninthelowestenergystate

(

)

A:B:

C:

D:

答案:

Theratioofthespeedoftheelectroninthegroundstateofhydrogenatomtothespeedoflightis

(

)

A:1/137

B:2/137C:1/237

D:1/2

答案:1/137

Iftheelectroninhydrogenatomjumpsfromthethirdorbittosecondorbit,thewavelengthofthemittedradiationisgivenby(

)

A:5/R

B:R/6C:5R/36D:36/5R

答案:36/5R

Aprotonandanelectron,bothatrestinitially,combinetoformahydrogenatominthegroundstate.Asinglephotonisemittedinthisprocess.Whatisitswavelength?(

)

A:91.2nmB:15mmC:49fmD:357nm

答案:91.2nm

Abeamofelectronsbombardsasampleofhydrogen.ThroughwhatpotentialdifferencemusttheelectronshavebeenacceleratedifthefirstlineoftheBalmerseriesistobeemitted?(

)

A:569.3VB:12.1V

C:35.7V

D:0.6V

答案:12.1V

ThelongestwavelengthintheLymanseriesis121.5nmandtheshortestwavelengthintheBalmerseriesis364.6nm.Findthelongestwavelengthoflightthatcouldionizehydrogen.(

)

A:74.5mmB:91.13nmC:8.3nmD:49.4fm

答案:91.13nm

WhatistheshortestwavelengthpresentintheBrackettseriesofspectrallines?(

)

A:327.89nmB:91.13nmC:569.34nmD:1.46mm

答案:1.46mm

第四章測(cè)試

A:

B:2.08eV

C:12.89eVD:7.13eV

答案:2.08eV

Ultravioletlightofwavelength350nmandintensity

isdirectedatapotassiumsurface.Themaximumkineticenergyofthephotoelectronsis(

)

A:3.5eVB:17.6eVC:D:6.9eV

答案:3.5eV

AmetalsurfaceilluminatedbyHzlightemitselectronswhosemaximumenergyis0.52eV.Thesamesurfaceilluminatedby

Hzlightemitselectronswhosemaximumenergyis1.97eV.Theworkfunctionofthemetalis(

)

A:3.0eV

B:47.5eVC:12.4eV

D:7.2eV

答案:3.0eV

ThedeBrogliewavelengthsofa46ggolfballwithavelocityof30m/sis(

)

A:B:C:D:

答案:

ThekineticenergyofaprotonwhosedeBrogliewavelengthis1.0fmis

(

)

A:938MeV

B:347MeVC:1.555GeV

D:617MeV

答案:617MeV

TheexperimentthatconfirmstheexistenceofdeBrogliewavesis(

)

A:J.J.ThomsonExperiment

B:MillikanexperimentC:Geiger-MarsdenexperimentD:Davisson-Germerexperiment

答案:Davisson-Germerexperiment

A:578nm

B:3.15km

C:93.6mmD:4.26m

答案:3.15km

Theexpectationvalue<x>ofthepositionofaparticletrappedinaboxLwideofinfinitewellis(

)

A:

L

B:L/2

C:0

D:

答案:L/2

Theaveragevalueof1/rfora1selectroninthehydrogenatomis(

)

A:

B:

C:

D:

答案:

A:B:

C:

D:

答案:

第五章測(cè)試

Anelectronwhoseorbitalquantumnumberis2hasthelengthofangularmomentum(

).

A:

B:C:

D:

答案:

Forahydrogenatominthe6fstate,theminimumanglebetweentheorbitalangularmomentumvectorandthezaxisis(

)

A:

B:

C:

D:

答案:

A:

B:

C:

D:

答案:

AnexperimenterwantstoseparatesilveratomsinaStern-Gerlachexperimentbyatleast1cm(alargeseparation)astheyexitthemagneticfield.Toheatthesilver,shehasanoventhatcanreach1000°Candneedstoorderasuitablemagnet.Whatshouldbethemagnetspecifications?(

)

A:57T·m

B:75T·m

C:39T·m

D:24T·m

答案:57T·m

TheLandefactorof

is(

)

A:1

B:0.67

C:3D:2

答案:2

A:0.6nm

B:1.2nmC:1.8nm

D:1.1nm

答案:1.2nm

TheBohrmagnetonis(

)

A:B:

C:

D:

答案:

Asampleofacertainelementisplacedina0.300Tmagneticfieldandsuitablyexcited.HowfarapartaretheZeemancomponentsofthe450nmspectrallineofthiselement?

(

)

A:1.45nm

B:6.94nmC:3.72fm

D:2.83pm

答案:2.83pm

InanomalousZeemaneffect,alevelofgive,s,l,jsplitsinto(

)

A:2j+1levels

B:2l+1levels

C:2s+1levels

D:0or2j+1levels

答案:0or2j+1levels

Anatomwiththestatesisplacedinaweakmagneticfield.Howmanytransitionscanbeobserved?(

)

A:20

B:30

C:12

D:35

答案:30

第六章測(cè)試

Thetotalspinoftwoelectronsis(

).

A:1or0B:0

C:1

D:1/2

答案:1or0

Themaximumvalueoftotalangularmomentumforelectronwithl=4(

)

A:4.5

B:4C:0D:3.5

答案:4.5

ThenumberofvaluesallowedtototalangularmomentumjinHeliumatomforagivennon-zerolare

(

)

A:3

B:0C:1

D:2

答案:3

The3sstateofNahasanenergyof-5.14eV.Itseffectivenuclearchargeis(

)

A:11e

B:1e

C:5eD:1.14e

答案:1.14e

Thegroundstateofcarbonis(

)

A:

B:C:

D:

答案:

Asystemofelectronsisdescribedbyawavefunctionshouldbe(

)

A:symmetric

B:trial

C:anti-symmetric

D:norequirement

答案:anti-symmetric

TheelectronconfigurationofNeonis

(

)

A:

B:

C:

D:

答案:

A:15B:10C:5D:20

答案:20

Whatatomshavetheconfiguration(

)

A:MgB:

Si

C:NaD:

Al

答案:Mg

HowmanyelectronscanbecontainedinMshell(

)

A:20

B:2

C:18

D:8

答案:18

第七章測(cè)試

WhodiscoveredtheXray(

).

A:Rontgen

B:BohrC:Einstein

D:Nobel

答案:Rontgen

Ifwehaveatungstenanode(workfunction

f=4.63eV)andelectron

accelerationvoltageof35kV,whatistheminimumwavelengthofthexrays?(

)

A:3.12pm

B:

0.0354nm

C:4.58fm

D:3.89nm

答案:3.12pm

ThecontinuumspectrumofXraycomesfrom

(

)

A:Pairproduction

B:Augerelectron

C:Photoelectriceffect

D:Bremsstrahlung

答案:Bremsstrahlung

Aphotonhaving40keVscattersfromafreeelectronatrest.Whatisthemaximumenergythattheelectroncanobtain?(

)

A:1.73eVB:7.95eV

C:5.41eV

D:

4.32eV

答案:5.41eV

Aphotonofwavelength2.0nmCompton-scattersfromanelectronatanangleof90°.Whatisthemodifiedwavelength?(

)

A:9.45891nmB:7.67945nm

C:5.56730nm

D:

2.00243nm

答案:

2.00243nm

Themomentumofphotonscorrespondingtotheminimumwavelengthemittedfromx-raytubewhoseoperatingvoltageis120kVis(

)

A:

B:

C:

D:

答案:

AnX-raytubeoperatesat100kV.Themaximumspeedofelectronsstrikingtheanticathodeis(

)

A:

B:

C:

D:

答案:

IftheK,L,andMenergylevelsofPtare78000eV,12000eVand30000eV,respectively,linefromPtis

(

)

A:18.6pm

B:92.6pm

C:43.6pm

D:14.3pm

答案:18.6pm

Whentheatomicnumberoftheanticathodeis79,

lineis

(

)

A:

B:

C:

D:

答案:

InZntheionizationenergyofKshellis9.659KeVandLshell1.021KeV.ThekineticenergyoftheAugerelectronemittedfromtheLshellis(

)

A:8.638KeV

B:7.62KeV

C:4.579KeVD:1.02KeV

答案:7.62KeV

第八章測(cè)試

A:134.7nm

B:0.5nmC:20.8nmD:1.3nm

答案:20.8nm

Throughwhatangleisa4MeVaparticlescatteredwhenitapproachesagoldnucleuswithaimpactparameterof

?(

)

A:

B:

C:

D:

答案:

Theenergyofahydrogenatominthefirstexcitedstateis

(

)

A:-3.4eVB:-1.51eV

C:-0.