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

答题人: 匿名未登录  开始时间: 23年05月01日 10:35  切换到: 整卷模式

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1#
 
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  In a pair of accelerating plates, such as founm6kz4io +mh;fsvg:5cw* rd+td inside a CRT, the electrons are emv4gi;ck:6+ t5o mhz * +wsdmrfitted (1.0 分)
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2#
 
单选题搜藏此题  
  A blackbody is an ide5xl.x4w)n ip mal system that (1.0 分)
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3#
 
单选题搜藏此题  
  Which color in the visible spectrum is associated with the lowest d.r/lod s+n; 5d77veo 0kuj uwtemperature? (1.0 分)
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4#
 
单选题搜藏此题  
  Planck's constant (1.0 分)
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5#
 
单选题搜藏此题  
  The ratio of energy to frequency foz k ,wkl6-m y2ajxj9,br a given photon gives (1.0 分)
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6#
 
单选题搜藏此题  
  The fundamental SI units of 3dco-q b:bym 9Planck's constant are (1.0 分)
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7#
 
单选题搜藏此题  
  Planck's constant has a value xmp:u ym/sku i*m 19,kof (1.0 分)
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8#
 
单选题搜藏此题  
  A photon is a partic *o.ia,n *g0briwko-ile that (1.0 分)
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9#
 
单选题搜藏此题  
  Which of the followin(nsva,)v 7 ) fflhgk08 h-tyklg is an accurate statement? (1.0 分)
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10#
 
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  What is a photon? (1.0 分)
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11#
 
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  The energy of a photon dh1j , ,yyobacnl15j:bepends on (1.0 分)
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12#
 
单选题搜藏此题  
  If the wavelength of a photon isj 7 r(u3.uf1,(+g pufktalfqk halved, by what factor does its energy change? (1.0 分)
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13#
 
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  Which color of light has the lowestz222zax pph+y energy photons? (1.0 分)
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14#
 
单选题搜藏此题  
  The photoelectric effea.;7dlifuxe:jp 8okq ,*w.*m) l /hnf rprjp2ct is explainable assuming (1.0 分)
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15#
 
单选题搜藏此题  
  In order for a photon to eject an eleca: 90uk)d- kbk3 vnmbztron from a metal's surface in the photoelectric effect, the photuv- nbd3:kkbaz)0 km9on's (1.0 分)
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16#
 
单选题搜藏此题  
  The kinetic energy of the photoelectron depends on whr7u+ sn ad-lf8 0f:abyich of the following? (1.0 分)
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17#
 
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  A beam of red light and a beam of violet light each deliversu b.7( +wfnq3 cv ejom*ox-7kfquue18.-q iv the same power on a surface. For which beam is the number of photons hitting the surface per second the greaf(7 qfonb u-qk8e.7 cv3 ixo-+1.ew*vmqsuju test? (1.0 分)
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18#
 
单选题搜藏此题  
  A metal surface is illuminated s9lm1ws cv o 3e y(1r,occ7-mowith blue light and electrons are ejected at a given rate each with a certain amount of energy. If thecc1 o9s 3ly1 wcm7(m e-o,osrv intensity of the blue light is increased, electrons are ejected (1.0 分)
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19#
 
单选题搜藏此题  
  A beam of X-rays of frequency f is incident upon a subso g98e1 au5ga.))(ek/dy mvb0e )d3m g etqhqytance that scatters the beam in various didh 89g)t 5)d3 e)eg ayqboegeumvkm1aq0. y/(rections. If we measure the frequency of the scattered X-rays, we will find (1.0 分)
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20#
 
单选题搜藏此题  
  A beam of X-rays of wavelength l is incident upon a substance that scat6b1 -.v dywyuccbalx/ :z l;)gters the beam in various directions. If we measure the wavelength of the scattered X-rays, we will find6 -wua;.)bz:1cl /xb ydcglv y (1.0 分)
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21#
 
单选题搜藏此题  
  When a photon is scattered from an edmhkp5neu hi w1 ,cz9y.kz.+, q-q c6l,shnl .lectron, there will be an increase in its (1.0 分)
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22#
 
单选题搜藏此题  
  In the Compton effect, as the scattering angle increases, the frequency oehsufaw(: agg 1hdh; 48n9k0wf the X4s9d hhn:a gf(;1ek8whua gw0 -rays scattered at that angle (1.0 分)
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23#
 
单选题搜藏此题  
  In a Compton scattering expfbm , ()22deujx,dty0sm n/eueriment, what scattering angle produces the greatest change y,m(s)jmd, ube 2/en d2f0tx uin wavelength? (1.0 分)
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24#
 
单选题搜藏此题  
  When the accelerating vk0c1h sbfs; c*oltage in an X-ray tube is doubled, the minimum wavelength of the X-raych10;c *sskb fs (1.0 分)
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25#
 
单选题搜藏此题  
  When a proton passes through matjv)m.1)cttt+ddl 27b z vd8zxter, it is possible for it to interact with the matter in such a way that an electron and a positron are produced; this interaction is referred to 1 v8d))xbl .tdmd2 +t7tzcvjz as (1.0 分)
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26#
 
单选题搜藏此题  
  As a particle travels faster, its 5(v+h d/ze dxhde Broglie wavelength (1.0 分)
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27#
 
单选题搜藏此题  
  When an electron is accelerated to a higher speed, there is a decrease insi vjlvmr+(, hm3p 0l1 its (1.0 分)
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28#
 
单选题搜藏此题  
  Which one of the following would tend to have the smallest wavelength if 6bh8yvja+zqj3j 1 .4o3 gqkdkthey are moving with the j1 v. kzd+a6q j8q3kgy 3o4bjhsame speed? (1.0 分)
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29#
 
单选题搜藏此题  
  The reason the wavelike nature of a moving baseballx+nt 5 ev3+bcl is not noticed in everyday life is tha+te+v 3c bn5xlt (1.0 分)
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30#
 
单选题搜藏此题  
  What advantage might an vo / nyu2lifynv(. xycr5a; cl(*u l--electron microscope have over a light microscope? (1.0 分)
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31#
 
单选题搜藏此题  
  The part of an electron microscope that plays the same role as the lenses4 l+;yqg8kz) nbvmm c2 cz8l7u do in an optical mi l7 n)uzb c8mv;+qc2m zy8gkl4croscope is (1.0 分)
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32#
 
单选题搜藏此题  
  Which of the following microscopes is capable of "photoouq:,)y v;4 q+um cufwgraphing" individual atomsq,4 ):o vquuyu;c wf+m? (1.0 分)
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33#
 
单选题搜藏此题  
  According to the Bohr model of the atom, the angular momentum of an electron 19zde3ia5 e+ qfx9luz around t9f1zde 3a+zqe lixu59 he nucleus (1.0 分)
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34#
 
单选题搜藏此题  
  When an electron jumps from an orbit where n = 4 to one where n = 2 n,x c cj(-l/aun7xij.jn7ljt6m26 nl (1.0 分)
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35#
 
单选题搜藏此题  
  The distance between adjacent o9c7f*5c )ouu0nrm m.hl5uoljrbit radii in a hydrogen atom (1.0 分)
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36#
 
单选题搜藏此题  
  The energy difference between8 v5j4qv/ofl1yjpe 8txhy ;i* adjacent orbit radii in a hydrogen atom (1.0 分)
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37#
 
单选题搜藏此题  
  What is the wavelength correspf/o 7 fwwfxw*7u.k; amonding to the most intense light emitted by a giant s w/ w*m7;aff. 7fuwkxotar of surface temperature 5000 K? (1.0 分)
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38#
 
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  What is the frequency of the most intense radiat dxrn ,ykt zaeodf:1-0hr1)0eion from an object with temperatur-:)0yehfa krd d1entr 1 ,z0xoe $100 ^{\circ}C$? (1.0 分)
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39#
 
单选题搜藏此题  
  How much energy is carried by a photon with frequen ux-,z :)ri;nz 6fr9a vmq* usm/bd(pncy 110 GHz? (1.0 分)
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40#
 
单选题搜藏此题  
  How much energy is carried by a photon with a 3woto x6i p94; tq;tcsfrequency of 100,000 GHz? (1.0 分)
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41#
 
单选题搜藏此题  
  What frequency of electromagnetic radiation a4 vhs76 4;moz(niaai has energy $4.7 \times 10^{-25} \; J$? (1.0 分)
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42#
 
单选题搜藏此题  
  What frequency of electromagnetic radiation has an energy of 5,. t2bxobh2hpzj iq 8co;*bg* 8.1 meV? (1.0 分)
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43#
 
单选题搜藏此题  
  What is the photon energ0x6p *2:efv tb 2jivu;j vvsi;y of red light having wavelength 640 nm? (1.0 分)
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44#
 
单选题搜藏此题  
  How much energy, in )oa3wf/rvg/s 7 k jj*pjoules, is carried by a photon of wavelength 660 nm? (1.0 分)
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45#
 
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  At what rate are photons emitted by a 50-W sodium g wpnl; p55s)6qoaj wk3*c/+xyg r)vjvapor lamp? (Assume that the lamp's light is monochromatic and63x*p w/rg +vlp cj;k oj5a5synqw))g of wavelength $589 \; nm$.) (1.0 分)
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46#
 
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  A metal has a work function of e +zwz.m6 kb*k4.5 eV. Find the maximum kinetic energy of the photoelectrons i b kzz6*em+kw.f the wavelength of light is 250 nm. (1.0 分)
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47#
 
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  When light of wavelength 3sa6*-brz yd5yi: +c ua50 nm is incident on a metal surface, the stopping potential of the z-+* ubydasa 6 i:yr5cphotoelectrons is 0.500 eV. What is the work function of the metal? (1.0 分)
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48#
 
单选题搜藏此题  
  When light of wavelength 350 nm is incide/3):g;ldwp ft m3wzl qnt on a metal surface, the stopping potential of the photoelectrons is 0.5w3/pw dl3ml)g ;zqt :f00 eV. What is the threshold frequency? (1.0 分)
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49#
 
单选题搜藏此题  
  When light of wavelength )vs b6ie7tktmj(1 o1p;hbk. f350 nm is incident on a metal surface, the stopping potential of the photoelectrons is 0.500 eV. What is the maximum kinetic energ.i mt kkp)eft1shbo;v17b( 6jy of the electron? (1.0 分)
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50#
 
单选题搜藏此题  
  A monochromatic light is incident on the surface of a mzsawabtd-:8ov6b8 gi r6 ml4 1etal with work function 2.50 eV. If a 1.0-V stopping potential is required to make the photocurrent zero, l wrsbz6vt i46og:badm 188 a-what is the wavelength of light? (1.0 分)
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51#
 
单选题搜藏此题  
  If the scattering angle in Compton's smf b/5uiwzg3a0s:-8vbg f)s zcattering is 90e. What is the wavelength sh3vzffbw gm8s):0u -5s/ ibag zift? (1.0 分)
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52#
 
单选题搜藏此题  
  X-rays of wavelength 0.20 nm are scattered by a metal. The wavelengaktf(7 g2 dj8lxyl.1k th shift is observed toxkk. 71(2lg yjl8dfat be
$2.1 \times 10^{-12} \; m$ at a certain scattering angle measured relative to the incoming X-ray. What is the scattering angle? (1.0 分)
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53#
 
单选题搜藏此题  
  X-rays with a wavelength of 0.00100 co x+ c*-gem zbau*fas(g3n 1:nm are scattered by free electrons at 130e. What is the kinetic energy of eachm3gc u*+co -f: s*eg axb(na1z recoil electron? (1.0 分)
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54#
 
单选题搜藏此题  
  What is the wavelength of the matter wave associated with a ball of mass 0.50 kggd5 z 3*mfmnllau6a(0 moving with a spee zmlnag(l u*0am d5f63d of 25 m/s? (1.0 分)
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55#
 
单选题搜藏此题  
  What is the de Broglie wavelengthaq-a rgeo95 )2 jkjkc0 of a ball of mass 200 g moving with a speed of a 05)a k9ej-ocgqjrk 230 m/s? (1.0 分)
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56#
 
单选题搜藏此题  
  What is the wavelength of the matter wave associqgmdvo2 qllqf/e )le4skax (-s-- l70ated with an electron moving with a x(-d7 o q -f)qlsel0le4gav -/kmlsq 2speed of $2.5 \times 10^7 \; m/s$? (1.0 分)
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57#
 
单选题搜藏此题  
  An electron is accelerated through a potential difference of 150 V. What id y:rvszz/*e- s its waszd *-e y/vr:zvelength? (1.0 分)
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58#
 
单选题搜藏此题  
  An electron is accelerated by a potential diff2ndd q9hz5tva)6:odyerence of 100 V. What is its waveq:6yz vd29adhtn) d o5length? (1.0 分)
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59#
 
单选题搜藏此题  
  An electron is accelerated byugr; mm73 n;+tm0q wmul.:r fwvb :o1x a potential difference of 100 V. What is its momentum in :.u mv0l;nb+wg m7u: ;fq3rxwmmo1tr$kg \cdot m/s$? (1.0 分)
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60#
 
单选题搜藏此题  
  An electron is accelerate oe/sbvn auhq-bp/b1 /g1 (pdhen+2;qd by a potential difference of 100 V. What is its kineti(hus2vgqn b;danpb he-e qo/1p+/1b/ c energy? (1.0 分)
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61#
 
单选题搜藏此题  
  A person of mass 50 kg has a wavelengni.58gekh*d npv)ebn a53qq; th of $4.4 \times 10^{-36} \; m$ when running. How fast is she running? (1.0 分)
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62#
 
单选题搜藏此题  
  An electron has a wavelength o(g2vk:lo -nn*+l gn xrf 0.123 nm. What is its energy in eV? (This energy is not in the relativistic regi2(k*lgnvlo g +n -rxn:on.) (1.0 分)
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63#
 
单选题搜藏此题  
  If $r_1$ is the smallest orbital radius around a single proton, then $r_6$ is equal to (1.0 分)
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64#
 
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  The electron of a hydrogen atom makes a transition from the n = 5 state to themt/mt2 +8j;g2kopqnh; 5e m cc n = 2 state. What is the wavelength of the ;e28mgn/5 mqjmch ;+p k 2otctemitted photon? (1.0 分)
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65#
 
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  The binding energy of the hydrogen atom in it v,c083pzsyoqzz g0 3os ground state is -13.6 eV. What is the o3zzc,zs 0vp3y0g8 qo energy when it is in the n = 5 state? (1.0 分)
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66#
 
单选题搜藏此题  
  A hydrogen atom in the g h5z ku16bhui2round state absorbs a photon of energy 12.09 eV. To which sh z6hbu5uk12itate will the electron make a transition? (1.0 分)
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67#
 
单选题搜藏此题  
  What is the ionization energy of t:p7m(ah9u zz: 7hde is 28agzthe neutral hydrogen atom? (1.0 分)
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68#
 
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  What is the ionizatis7knna vp3:lqmsy 89*on energy of singly ionized helium? (1.0 分)
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69#
 
单选题搜藏此题  
  In making a transition from state n = 1 to state n = 2, the hydh8t ixa)5ipae 5dhp6f x,1lt,rogen atom must (1.0 分)
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70#
 
单选题搜藏此题  
  In state n = 1, the energy of the hydrogen atom is -13.58 eV. Wh:rl . liwi.:zj0t8 v:kypc x -lhw*-that is its energ0tkjitl vy8ic*l:r -z-wh wpx..l :h:y in state n = 2? (1.0 分)
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71#
 
单选题搜藏此题  
  The wavelength of a ruby lasfwo3oa -z/; crer is 694.3 nm. What is the energy difference between the two energy states involo/; fw a3czr-oved in laser action? (1.0 分)
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72#
 
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  An electron is moving about a single proton in an orbit charact j.- jmyyx0e(j2v /ej.oyhc.ferized by n = 4. How many of the electron's de Broglie wavelengths fit into the circumference of this orjj c2-/0vh.y jofy.ex j(.emybit? (1.0 分)
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