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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, the el3( 9 +qoa*oi hp-)wtn*vsy/jstkl9 mbectrons are p o 9(yikq3sb/tas*wj*9v-n)hl m o+temitted

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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 sysk o;)qz1hewc- tem 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 theyb +nsjw)6c5w7n n -yc3y3 uca 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 0jem k-l5uawvf1rq 69 s*u8hffor 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 s knksnx6 ig6- 8+4qeePlanck'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 valueih)2 ( iojv8ye 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 w qe .kdp/8zbtkly .9/that

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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 cdj3z1 h58hdgaccurate 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 depen wxufjfk. *;5pds 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 energy3f c2t w7rmphs:jwqrob:05top*j,m8 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 the lowest energy pho)1lolf .j*7 yfbl(quj tons?

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14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The photoelectric effectdm xte/):mcxf 0/c.8/ nsz pun is explainable 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 p;q*s5a: *ydbyx6ey7 ux e1bcvmg*hmvn4 6b r-hotoele 1*-a d6hn;*qmc4e:v* 6ybgm7esyyvxxr b5b uctric 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 t xmy,:+ kuqo6ekbb7* dhe photoelectron depends on which 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 each deliver the same powepo 3.wql9h cx h65lx3rr on a surface. For which beam is the number of photons hitting the sq hc6l9r3o 3 xhwxpl5.urface 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 and electrons7; bblrtt91 w8+tr2t enxha7 p are ejected at a given rate each with a certain amount of energybw7n tt9t a r7xehb t8r2l+1p;. 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 scatters thef, 3*o6gz,4yt;vgqie ,b dgu s beam in various diggoq ;zdit* 4gy,,fs6uv be3, rections. 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 u6s. 6my dzhs bu 2,d/bxwqfi1-pon a substance that scatters the beam in various directions. If we measure the wavelength of the scattered X-rays, we will finddfbhq6/u ,.s w1 -2i dmxb6ysz

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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 be an inxnvi , evgn92j 5e5p)dcrease 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 scattering angle increases, tlk)sap67hdj5 g ymg3 0he frequency of the X-rayspg0 7akhjgy d6 3)lm5s scattered at that 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, wha d9oe2ka jjux928es1ct scattering angle produces the greatest change in wavelengt 9eoj2xu8acs d91 e2jkh?

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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 do4q, lkc/ vk3k)k te6tmx,w 4rjb6rtw 6ubled, the minimum wavelength of the X-rkk4 x ,wj 6krrlt kq6cbmvetw36t),4/ays

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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 is possible for it to interact with ma)3bhgym4ww ;2i3sg the matter in such a way that ang;y3 bw32)sg m4iw hma electron and a positron are produced; 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 wavelengts3s ryk ylv5.d35duf-ap v9/lh

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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 accebc +s 2oii:jsv9orwmv- w //k-lerated to a higher 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 tend to have the smallest wavelength if they ar(-c(x 6l aj8y zb ;dncx25meaqe moving with tzl( yc8j me2; 6(- nbdx5cxaaqhe 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 waveliks+e*1y yns5 kxe nature of a moving baseball is not noticed in everyday lif syne*5sy1k+xe is 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 microogw0o eo(j+ lm 8ctzlde*rkqa-:/0 m3 scope 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 that plays the samkr *zn1 q8e+jze role as the lenses do in an optical microscope irzz+e1q*kn 8j s

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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 "photographin;w2 jp o20dcshg" individual atom ho jdsc02pw;2s?

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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 of an eln7of/5 jtnxw ukqm u*(2 p9yqgs*:l 3mectron arou:n3kxm qmno57(qs *9ug pyt2/w fj*lund the nucleus

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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 :t3 wg34kagl5 /rvlvo 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 i1m:eg4.ra-9lzh y4jvxs: gw5:vlqu m n 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 orbit radii inw1/got u .k/um 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 cor.:d d +hw:u1 -ms9h(udsiwdsqresponding to the most intense light emitted by a giant star of surface tempera-ihd+sds9 (wwmud1. uq:: hsdture 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 froh99frzdkp;+0d4 l i pnm an object with temperat904n9pd pfhz+;k irdlure $100 ^{\circ}C$?

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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 caua33u/x0djzy zx24q5 clvb n9;/merprried by a photon with 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 carriedw+ vh wv2nvnip +* q06c7 zu8m6nn/pgl 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 ele-q b3.ynk evp;ctromagnetic 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 an energy of ex dm g5,n0g9b58.1 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 energygsu (le7 :4-*e aulisk of red light 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 jou9: 0p0va /. lzept(rcqey5rf n0gaj7d les, is 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 emitted by a 50-Wqc+xk5(rcale 8akh0 2 sodium vapor lamp? (Assume that the lamp's light is mono kq+h(c5aaerl0xk28cchromatic and of 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. Find the maximum kinetic energy of the fuikr83 uy: t w6z:;wc0g,ksqphotoelectrons if the wavelength of li uyifq6s:ct3 :z ;u0kwgk,8rw ght 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 nymf,*hoez7 7hzks9 f bbf-6 )tm is incident on a metal surface, the stopping potential of thfze) s7 7b 9fzh t*m,bf6kyoh-e photoelectrons is 0.500 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 surfacf hfj;il-.+evwgk*kmw2n5s3 q x bk;(o*l f g5e, the stopping potential of the photoelectrons is 0.500 eV. What is the threshold frequ3i( g* +f 2sgnlkw ofb.e -;wl;j5kv xkmq5h*fency?

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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 metalk7e izha50*x6bf:xc 3h3uo hb surface, the stopping potential of the photoelectrons is 0.500 eV. What isx 0*koxficbu 3:z6h ea53hhb 7 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 sur 3 p;:y.j/ubvy q0e2wqpcxqf56m0frk face of a metal with work function 2.50 eV. If a 1.0-V stopping potential is required to make the photocu pyxcwu2:ef0 bfp0r3qjm yvk6/.q ; 5qrrent 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 Compton's scattering is 9boi8: i: nzucek,+7 ilx(*zep0e. What is the wavelength shz(uoie*k xp7 in8+bcel: z: ,iift?

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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 wavelength shi;ov j5 bfno8sg 50qrde. ,,pqqft is ope0o8,on.q ;vq s,d bfjgq5r5 bserved 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 i1scw2kwq/ucii ,8svl9:n3 fnm are scattered by free electrons at 130e. What is the ki39ivfk uc8iq: /nc swlw,i 2s1netic 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 matter wave associated with a ball n(gpcn* dor6l;i1 gt8of mass 0.50 kg moving with a speed cng;n*68lt rodg1(pi 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 mass3xg6hed*w he1djm mh 0k-r+5 k 200 g moving with a speed ofdj*g +h6h53 mwk-r0mx eehk1d 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 btm41ohg9)z b associated with an electron moving with a sphbz9tg)b 4o 1meed 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 poteruq6w: op pq e*+gln8/u14aqwntial difference of 150 V. What is its wavelength/qqw*apo16lr q e+pn8u guw :4?

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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 potea ch7z50sv7hv ntial difference of 100 V. What is its wave7acv57hv0 s zhlength?

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59#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An electron is accelerated by a potential difference ofm0tx3pe7fj7ez u 9 pk) 100 V. What is its mome30p7k9 pfxueje7t z )mntum 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 potential difference of 100 V. What is its pm v wedoo ff(jo57l250-xnr gxm.t,+kinetic ,ne.mg tx+xodfmv j-pr7 f (wl205 o5oenergy?

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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 wyv/;pbjvt j4i228dc s avelength 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 u+mv pxn22iwkh 394obwg09bu is its energy in eV? (This energy is not in the rel2b0ok p9uxn buhi2w vmw 94g+3ativistic 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 ato, qlhrfwtl8+ )m makes a transition from the n = 5 state to the n = 2 state. What is the wavelength of the emitted pho+)qfw,t8r lhl ton?

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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 hydrogen atom in its ground state is -13. z5s )y.cw,/hw qp6hvu6 eV. What is the energy whswhuq. )v5hczy p,6w/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 a dipd0;(ya4vv5 gkb/of energy 12.09 eV. To which state will the electron make a transition?dag ky/4 vb(v p0ad;5i

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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 atomkh0zt4 k .l 35uh,n,s3nn gt.twpm8e b?

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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 ionizedemk p-ts ly dsyl0rk. --m276e 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 o4z9qt5caqj6 to state n = 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 hydrogenod dh.jzb)jggq8c:-j q--6ec atom is -13.58 eV. What is its energy gc bg6dzjjc8 edoh:-).qq--j in 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 ruby laser is 694.3 nm. What is t (qa)w+w* p4yuqeh0izhe energy difference between the two energy )u4zw *wq+h qay ip0(estates involved 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 characterized by n e rmy9v )t9su2v(mjjk48 xi +s= 4. How many of the electron's de Broglie wave99yxkjt 48vs(i+s)v jremu2 mlengths fit into the circumference of this orbit?

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