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习题练习:Physics Unit27: Early Quantum Theory and Models of the Atom



 作者: admin   总分: 72分  得分: _____________

答题人: 匿名未登录  开始时间: 23年05月01日 10:39  切换到: 整卷模式

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1#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In a pair of accelerating plates, such as found inside a CRT, the861rf 1zy. ms bfhq5* ar5oled electrons are *l5fzd1 5e68afhr.mqs ry1 ob emitted

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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A blackbody is an ideal:xb.- jl;t:pgxah q.yahfs4 v2)y/xl system that

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which color in the visible spectrum is associated with the lowest temperature f+efb5l *ya/g4 3eaxh?

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4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Planck's constant

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5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The ratio of energy to /5ff 0y.yea3ow4epr p4v)yja frequency for a given photon gives

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6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The fundamental SI units of Plmr-m,i q(p0evq r m*t jw)nv::anck's constant are

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7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Planck's constant has a value , etw6 c0/ujee res0mbd ,6nq;of

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A photon is a particle wglk.c:ytz2ohr/b d9/ /s 9x jthat

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9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which of the following is an accurate staxy8pq:.n,, rc3qn /ug +uwo awtement?

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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is a photon?

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11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The energy of a photowybcib43c tqq6 b6* f/n depends on

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If the wavelength of a photo1xj:cnm/dt o,n is halved, by what factor does its energy change?

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13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which color of light uivgm v+3 9*iphas the lowest energy photons?

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14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The photoelectric effect is explainable zbch /- 7j0i:rjkt+hl assuming

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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In order for a photon to eject an electron from a metal's surface in the photoe 3cbd+:zccs wp5 ge7q3lectricp: cz3dc+3q7esbw c g5 effect, the photon's

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16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The kinetic energy of the photoelectron depends on which of the following? xj)1gc4urnhav;3 9bm0mo*q y

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17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A beam of red light and a beam of violet light each deliver the same power fqg),dlsz x42on a surface. For which beam is the number ozqlfd,s)2x 4 gf photons hitting the surface per second the greatest?

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18#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A metal surface is illuminated with r( c/vu:rl,k y4pfw p7blue light and electrons are ejected at a given rat/: pr 7v(plwf4yc,ukre each with a certain amount of energy. If the intensity of the blue light is increased, electrons are ejected

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19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A beam of X-rays of frequency f is incident upon a substance that scatter17qpau u28mnm/ov.0v )kq v6 k(twvous the bea v8tk(7/ mkm6 qoq2n0ouauu1p) w. vvvm in various directions. If we measure the frequency of the scattered X-rays, we will find

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A beam of X-rays of wavelength l is incident upon a substance that scatters the ;fhpl8 o,)m9- vonfjmbeam in v ;m plovho -,)mjfn9f8arious directions. If we measure the wavelength of the scattered X-rays, we will find

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When a photon is scattered from an electron, there will b ,l)m jy4mb y-vo)x9fee an increase in its

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In the Compton effect, as the s77r; vmd a8-a1ftb.tnrpn :pncattering angle increases, the frequency of the X-rays scattered at thp7b 7r.a d1rm;v - n8annt:pftat angle

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In a Compton scattering experiment, what s/4 6izgfkf6b,ec xt 9ecattering angle produces the greatest change in wf tek66xc/,z 4b9efgiavelength?

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When the accelerating voltage in an X-ray tube is doubled, the minat;p ,r r 3;,kloz:nc). uwc2gy+dzfwimum wavelength of the X-raysrwcp 2dz) +ywk;,l,czt ;.3frn:u a og

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25#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When a proton passes through matter, it /v* t rymwkqj8h/jde)m z1cpg/-0/ uwis possible for it to interact with the matter in such a way that an electron and a positron are produced; this intera/g/jcy mwh8m) /1/ 0wk vju- eptz*dqrction is referred to as

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26#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  As a particle travels faster, its de Brog1a4o a;5kzk a8m) m4na u4dtfilie wavelength

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27#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When an electron is accelerated to a higher spe12tpdpfny r6xii 6l.3) 7rbx ned, there is a decrease in its

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28#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which one of the following would tend to have the smallest wavelength if u2b c7i:kbbt9they are moving with the sb k2tcub7i: b9ame speed?

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29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The reason the wavelike nature of a moving baseball is not noticed in everyk3+uo)qj kj/ tday life ) /tku3+jkjq ois that

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30#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What advantage might an electron microscope havx+0/ n3s cfubrsnyxq,x;x,w0 e over a light microscope?

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31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The part of an electron microscope that plays the same role as the lgqyym 8v77gyxty -i15 enses do in g mq7y 7y-8yyivx5 tg1an optical microscope is

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32#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which of the following microscopes is capable of "photographing" individual at g6qm 0 5zt ec*oa.9zqhm0khr.om .khhz.qmzc 9o a qr*0e5g6mt0s?

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33#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  According to the Bohr model of the atom, the a,o n8 etcj74pangular momentum of an electron around the nuet,a jpn8 4o7ccleus

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34#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When an electron jumps from an orbit where n = 4 to one where7:7i0 raoyx-h l6p dsl n = 2

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35#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The distance between adjacent orbit radii ie;gfwssj/s*o gk7j01 io s ;3nn a hydrogen atom

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36#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The energy difference between adjacent o ,r: ck d2sr0srw2-ikkrbit radii in a hydrogen atom

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37#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the wavelength corresponding tl oyf8t yn/ e:ba *(9wiuopt00o the most intense light emitted by a giant star of surface temperaturu 90lp08 *:ntot ey/fw b(yaoie 5000 K?

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38#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the frequency of the most intense ra ;z ,;meh 8ejt:lyedh5diation from an object with temperatuetjmey l e5 dh;h:;,z8re $100 ^{\circ}C$?

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39#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  How much energy is carried by a photon w7*mtn0*p3oqcvj, y f7z cbc *uith frequency 110 GHz?

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40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  How much energy is carriedsfc,rcps u 7+oif:3 ,d by a photon with a frequency of 100,000 GHz?

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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What frequency of electromagnetic rnnsdfv,y6:1 pi33cv ss2i4 u sadiation has energy $4.7 \times 10^{-25} \; J$?

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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What frequency of electromagnetic radiation has an energy of 9/9vgc( rcc9idifk* ixh+y5.* msaq i58.1 meV?

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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the photon energy of red light hnjhe,gs cwn*l 4uv eh6u/ /vcmj++ (o8aving wavelength 640 nm?

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44#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  How much energy, in joules, is cayv2 l5difoxb1( v )s*dgdf9,frried by a photon of wavelength 660 nm?

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45#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  At what rate are photons emitted byln6 bpon*f) r/ a 50-W sodium vapor lamp? (Assume that the lamp's light is monochromatic and ofnn /rlf 6b)op* wavelength $589 \; nm$.)

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46#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A metal has a work function of 4.5 eV. Fc/h 4,s,txn loind the maximum kinetic energy of the photoelectron/h,,cl 4 sxtnos if the wavelength of light is 250 nm.

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47#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When light of wavelength 350 nm is9avvt,gx7 m1m incident on a metal surface, the stopping potential of the photoelectrons is 0.500 eV. What is the work function of the metav vg9xmta1m7 ,l?

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48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When light of wavelength 350 nm g 7 .qdon0q4vgis incident on a metal surface, the stopping potential of tv 4g qqg.n0do7he photoelectrons is 0.500 eV. What is the threshold frequency?

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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When light of wavelength 350 nm is incident on a metal surface, :o 1w :eipgb9d0 +bdf,dfs-uethe stopping potential of tf:db-, 0 ogiw1bsfp 9e: dedu+he photoelectrons is 0.500 eV. What is the maximum kinetic energy of the electron?

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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A monochromatic light is incident on the surface of a metal with u -orabv9 w(*9p ii/lxwork function 2.50 eV. If a 1.0-V stopping potential is required to make the photocurrent zero, what is the waveleiw-b9l xra/iv9 pu(*ongth of light?

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51#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If the scattering angle in C 6cb yrz/q3r7kompton's scattering is 90e. What is the wavelength shif6/q c3z7ykrbr t?

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52#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  X-rays of wavelength opq6a7n -e5 gp0.20 nm are scattered by a metal. The wavelength shift is observed to bep6 ong5 q-e7pa
$2.1 \times 10^{-12} \; m$ at a certain scattering angle measured relative to the incoming X-ray. What is the scattering angle?

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53#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  X-rays with a wavelength of 0.00100 nm z(.tnei7- )xsq cqs 3oare scattered by free electrons at 130e. What isc3 se7s(t-z n.i qox)q the kinetic energy of each recoil electron?

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54#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the wavelength of the mat.b gtqr n0pw(5ter wave associated with a ball of mass 0.50 kg moving with a stpq w nr50bg(.peed of 25 m/s?

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55#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the de Broglie wavelength of a ball of mass 200 g move3+y 5ld ex b+xyg4v,ving with a speed of g4eldyv +vxb,3e5+ x y30 m/s?

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56#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the wavelength of the mattc7xfak)po l75*z g an/er wave associated with an electron moving witagc )/kxza7f*no p75 lh a speed of $2.5 \times 10^7 \; m/s$?

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57#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An electron is accelerated through a potential do+d*vo g:fhoo9d. 6jk3t rb p4ifference of 150 V. What is its wavelof64og rhb9 okt 3 :pd+doj.v*ength?

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58#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An electron is accelerated by a potential differenceg+cn3iko8prf v)99mw of 100 V. What is its waveleni gkop)+9f3nc9vrw8 m gth?

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59#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An electron is accelerat-yqg:sli6;q bed by a potential difference of 100 V. What is its momentum inig ysq;6:qbl- $kg \cdot m/s$?

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60#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An electron is acceleratedj:;je vrobe-6:isxtmvo;9 m w14-fuf by a potential difference of 100 V. What is its kinetic ens9 f61j;4i -vxv: jo eb;-f woumem:rtergy?

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61#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A person of mass 50 kg has a wa*hwk e 8u7q4-wa:segt velength of $4.4 \times 10^{-36} \; m$ when running. How fast is she running?

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62#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An electron has a wavelength of 0.123 nm. What is its en-ji-vk13pi tqwm v fngl - qa+t5;5jk8ergy in eV? (This energy is not in the relativistifn vglqwk8j5pti-+k-5 1q 3- a jtv;imc region.)

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63#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If $r_1$ is the smallest orbital radius around a single proton, then $r_6$ is equal to

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64#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The electron of a hydrogen atom makes a transition from the n dw55usq(z , zueg3um q0 rf7j4= 5 state to the n = 2 state. What is the wavelen fg wu z54q3qu,d0(j57suemr zgth of the emitted photon?

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65#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The binding energy of the,sv5/x k/ e(b 3ck5;pk)qglun1vm pha hydrogen atom in its ground state is -13.6 eV. What is the energy whcpgkvns3/5m( qa,k hlp b);15x v/eku en it is in the n = 5 state?

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66#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A hydrogen atom in the ground state absorbs a photon of by9ys*q7ibtz 3/tafb2)f m . yenergy 12.09 eV. To which state will the electron maiyztmq9s2a/ f73ybb b)*t. f yke a transition?

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67#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the ionization energy of the neutral hydrogen +4zg kh 0w3a6gzq)tbtdn/ z4k ./yzbratom?

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68#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the ionization energy of singly ioo0 4ed96 iytg3(opc -kcr: clunized helium?

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69#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In making a transition from state n = 1 to state n = ocir k8z/j l+3;-qnbudk2 vk+ 2, the hydrogen atom must

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70#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In state n = 1, the energy of the hydrogen atom is -13.58 eV. What is itp; 4hr3z +ky gu bvoa+hw*pe:+s energy in stat pha++43kwv; yhzg+*our:p bee n = 2?

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71#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The wavelength of a ruby laser is 694.3 nm. What is the energy d b+skp rhqgtp;-x5 qlh35h rdz+y0 8r1ifference between the two energy states invo5+8xrk l1d szh qhh 5py-;b+r 0pgtqr3lved in laser action?

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72#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An electron is moving about a sinj my 2vtnp:y67sgi6)q )p8 yzo/:kykngle proton in an orbit characterized by n = 4. Hygvz o) 66 jp)n2p :qnyks7m iykt8y/:ow many of the electron's de Broglie wavelengths fit into the circumference of this orbit?

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