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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, sl.g- 15w ,-l g)u mw5ir sjd/*cqikwlthe electrons are emittwd5w imk- lg,.u5*rgcs1sj/lq) -l w ied

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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 system thax gii)lf 8f8d,(epj 47d jw;lmt

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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 assoct-qo 2kyarhwu2*g 25t iated with the lowest temperature?

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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 frequency fq9 hr431/c:wdrspn hyor 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 Plarrikcn e: - g9t6ztdp:(xl )*wnck'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 haqj )cg1+*d ahqs a value 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 thav 5ndt: hqlc8f8+sw1)eo;a zqt

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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 ane+ n6h fo8kqw(y,d .bd accurate statement?

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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 photon depend0vai,a)bb f+n*lb0d.z tx p;bs 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 photon is halved, by what factor does its energy05t adzp-t3s.s cniwz:i x+ t2 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 has f 3z 1kb )fww;(2hd i;,edoy 1l/m)amik8winfthe 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 d*1 qly7t)jqoo y 4zw9assuming

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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 electroj 7t5t;w3c .vfv fpkb/n from a metal's surface in the photoelevffj;v357.c pw kt/t bctric 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 whihk*9:euhjcr; ch of the following?

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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 eac(;j,f6b *nv 2dksq 8megb k5uch deliver the same power on a surface. For which beam is the number of photons hittink 2c(vjqfb g;n8 dke6sb,u*5 mg 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 blue light and9is;rxsg, 4++) 5lpqpsy sftn electrons are ejected at a given rate each with a certain amou,yls4r;is +5p)t xspf9 ngq+snt 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 uponzgi1 c2x n,pqby6*wmfa/: k(a a substance that scatters the beam in various directions. If we measure the fw cm1anxf a:z/g k*b6 i2yq(p,requency 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 ysba84 6w jc(lthe beam in various directions. If we measure the wavelength of the scattered X-rays,6la(jc ybws84 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 zhiy5) +,ll,0pk cb d8eoffctx8s.8be 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, d7pveqdbahqis8j7.o* 5 0 7om as the scattering angle increases, the frequency of the X-rays scattered at that 8b o ade757phq7qi.ojvs *0md 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 sca 3q:l x6u j0dr8ikj:hqttering angle produces the greatest change in wavele 6l0 h :xdj8uiqkr3q:jngth?

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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 minimum wavele6f*dpkh b.);e)he bzl ngth of the X-ra )pd6bhz e.)fk;heb*lys

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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 throughjg;96y7 phgyqu6ny; v matter, it is possible for it to interact with the matter in such a way that an electron and a positron are produv; 9yh; 7quy6ggnpj6yced; this interaction 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 Broglie wavelengtjp ,kq pa*usf9wc :7hi zji .nm-0zj**h

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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 higherq06ze x (nrp-6wkix5k speed, 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 tj l .en3xit/)pend to have the smallest wavelength if they are moving we3nx) /iptl j.ith the same 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 movi f,ghpqwgmb62(/, a .tqn 2djcng baseball is not noticed in everyday life mpj 6af/.(,wh,2cqdgqng2btis 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 micros -f : *b3u0sqrvfunzqoimkm;9b3:kt9cope have 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 tha0c-/. 0emt+ptawdqf b t plays the same role as the lenses do in an optical ft.apt m0/ceq-bw + 0dmicroscope 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 "pho)i ;ey*p 6hwjenr,ab. tographing" individual atoms? bn,.6ei) y;*wprah ej

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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 angular momentum ofgita 2 spetu;+esx7 l 45-v96xoz2 oar5ccw6 p an electron around the nucleusoau596os rlztix 7v2 et42 cse p5axg+ 6p;w-c

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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 aj4.ejrca2x pgjhk14 6n orbit where n = 4 to one where 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 in a hydrogen a kfn-9j 7mhmeof /hivs(05dn-tom

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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 adjacentr0 l:ohqp5k)s d*th-r orbit 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 corresponro4 1bgy cg7+ui:em, ading to the most intense light emitted by a giant star aor4 1m g7bce,:i+guyof surface temperature 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 radiation v 4 )h9q1fetxnfrom an object with temperaturet x91)4vh eqfn $100 ^{\circ}C$?

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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 with frequency 110 GHzhsb z5 ak*mr;0 3*zjl32ap lvx?

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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 carried b/ z//c(timsn/u3r o imy 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 ele eb;a:lbr 4d)ictromagnetic radiation 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 anbskv ,x,8; hbzo n13zh oor2j- energy of 58.1 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 ny; )5m*k4ocgm oc(rslight having 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, ist(4h+cuz ygo;ge-85m wbn;b j yzf :r:7zhbu/ carried 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 emitter5v eh) 9yw gm4*t+iicd by a 50-W sodium vapor lamp? (Assume that the lamp's light is monochromatic and of h g+i5t)r v 9iy4w*emcwavelength $589 \; nm$.)

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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 udt 0o q-/vn5oeV. Find the maximum kinetic energy of the photoelectrons if the wavelength of light is dqvt/o5 0-uno 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 is incident on a +sbd,wwa we o9+ q*5pxmetal surface, the stopping potential of the photoelectrons is 0.509,awes + wb+d qox*p5w0 eV. What is the work function of the metal?

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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 is incident on a metal surface, the stopping pozndf l6+2lfno6g .obzoa :,c4tential of the photoelectrons is 0.500 eb.c o6zf4d+nf6ol2aonl ,gz:V. 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 incident8m/ hx)ox*m me on a metal surface, the stopping potential of the photoelectrons is 0.500 eV. What is he m* ommx)/8xthe 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 srsn9nqb799n q k* nf0nurface of a metal with work function 2.50 eV. If a 1.0-V stopping potential n f79rnsn* nqn990qk bis required to make the photocurrent zero, what is the wavelength 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-:hfb 9xpx-p2 r.tpl t Compton's scattering is 90e. What is the wavelength shx h9rt lf.x2p-pp:- btift?

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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 0.20 nm are scattered by a metal. The wavew a fmc2-g15gylength shift is obseawm fyg1g-5 c2rved to be
$2.1 \times 10^{-12} \; m$ 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 are scattered dngw1cs( 6( 0f9as ;wacep,scby free electrons at 130e. What is the kinetic energy of each recoil ele (e1,cwc0n 6pssf(gad ;wa cs9ctron?

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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 matter wave7xf fp -aojm,en;s4p(t ,tdy- associated with a ball of mass 0.50 kg moving with a speed of s-pxyj oa- p;t, 7f ,(tden4fm25 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 mw+ kp)g5u 5jrvn6;gccp8dw 9 coving with a speed of5p 9c+; jg5vur) pkcwnwcd 68g 30 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 matter wave associa9z ckg9(ms u0/ruv ytnyb(73dted with an electron moving with a speed ( gt v yk c(07mn3sy9z9dbru/uof $2.5 \times 10^7 \; m/s$?

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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 differenvapnb 3xic:, mo-p9kshpakd (/ ,bj:0ce of 150 V. What is its wavelmnbbsodh9k pp/-ipcx, : v(:a3 ,k0jaength?

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58#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An electron is accelerjksk jb6g(5c2 k3 1fkoated by a potential difference of 100 V. What is its wavelengtbk(3sk15kf j oj6c 2kgh?

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59#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An electron is acceleratnmc ;;ogq49 s7k snni2ed by a potential difference of 100 V. What is its momentum nm;s47nnkq;c s 2o9ig in $kg \cdot m/s$?

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60#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An electron is accelerated by a potential6cxf*6;z e k9u fzoj3o difference of 100 V. What is its kinetifo uc63*j ek6o9;fzzxc energy?

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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 d ( q c5-4sshsv-(kbksmxx+q8wavelength 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 fb i4/m0lw git* ;ez+w0.123 nm. What is its energy in eV? (This energy is not in the relativi glwwi +z/0if4m;* btestic 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 m9j5s 8 6ykf:n lzcp*8y2ll4qguo bum+ akes a transition from the n = 5 state to the n = 2 state. What is the wavelength of 9+2fc m lq5lny4 uo:s8 gybjl6z8u*kpthe 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 hs,4 jsc /dgkyn 3jux4,ydrogen atom in its ground state is -13.6 eV. What is the energy when it is in the n = ,u n/4xsj,k y43 dcsgj5 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 absd0,hpwufzd8+h r-5 ca orbs a photon of energy 12.09 eV. To whichpc+-rfd05,u8a zhwdh state will the electron make 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 jgzrl *9v b5y 9exwax*i1s6: tatom?

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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 ene(z xxobq -c rjj6*bb9mo+s3o5rgy of singly ionized 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 = 2,ajg j3 pfo+odb7-0lu/ 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 t.w8kk-wyc -d 4sb ruq(he hydrogen atom is -13.58 eV. What is its energy insqu - cdw84r- kkyw(.b state 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 7o)ys:c cx6ar ruby laser is 694.3 nm. What is the energy difference between the two energy states i)csc6rxao: 7 ynvolved 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 single proton in an orbit ch x(q)/npd*qp aaracterized by n = 4. How many of thep )xa/dp* (qnq electron's de Broglie wavelengths fit into the circumference of this orbit?

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