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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 2 +47wb1o)puh4bny2hp qaat 3 qza6fi CRT, the electrons are emittea4q)zpb u6pfhaaqb3nh24 1y 7o t i+w2d

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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 to m.fyr5 y/s(bhat

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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 wi7evfs -e/:l8 pn6g5zsx 7)enrpjd)ch th 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 f4y o c,2wxcj kwh6jyw(c*l74to 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 Planck's constant sjyqp.*f4e zd1 : goaggx06 ;vare

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7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Planck's constant has3kzu j.rmk ) (acfm8l7 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 thatvli2ye/ jh)3o

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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 statzu hw*dm z64a6rl a:.bement?

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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 depends op+ h+ 6eb hkzy1.jicl3n

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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 halve4zm(y p1 dvm9wd, 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 ro rc7-t*xx3a has 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 explgggg ..*tosl+:(jae painable 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 photonz9-glydd- rs/yu0vi75 fefn0 to eject an electron from a metal's surface in the photoelectric zn5-f uvd ry0/y0-7 efgdlsi9effect, 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 9gj1;6up azinkkiv6. 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 b inz9i )nhb zo),cw* ea1sf1*light each deliver the same power on a surface. For which beam is the number of photons hitting the surface per second the grea znf)nz9bbii**wo)1cs1hea , test?

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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 lcta i+v0n, j7iight and electrons are ejected at a given rate each with a certain amount of,n vtca7 j0+ii 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 scatterskadml;9i /)wk the beam in various directions. If we measure the frequency of the scattered X-rays, we will find9 ila/ kk);wmd

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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 subste33/ delv vf;pmc h6jed21xo 3ance that scatters the beam in various directions. If we measure the waveleo xh j33mpv/de6ve;d cl fe231ngth 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 w .gfcdn/0e 2bbe 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, a;mh3jjqayho jg6 ) xk,3q.x -is the scattering angle increases, the frequency of the X-rays scattered - qx 6kqx.ya)j jhh3io m3g,;jat 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. vc fg pf2,wzq(32ddkt scattering angle produces the greatest change in wavvkc,dqwp2f3 z2g.df(elength?

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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 wavelengb )ru,e7ttkquux) s)7th ofb t)e)u)tkqu,7xr7su the X-rays

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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 withb0hym () bzj.aor*z(p the matter in such a way that an electron and a positron are produced; this intera*oj0a)b(b y( pz.zhr mction 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, y6 :9zcvud(m bits de Broglie 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 hiz x(wfxpnbe) f)orm+ -52( cnvgher 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 sm 1h9mardp- a1i5v (qxmallest wavelength if they are movingdvh1 9p1xmi rq5-aa(m with 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 jak-te b(h5fmib z2 2zq:+n 3t48,ptb ff qvl;moving baseball is not noticed in everyday lilht,zp:(2ebf8v n ;4zjfkt3+a tbqmqi5f- b2 fe 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 microscope have over a light mic s.cb z/o+(bigwuv30r roscope?

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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 i9k1bo wm,7ufas the lenses do in an optical miu1b7 w9 fio,mkcroscope 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 "photogra3euhxpt m65.: s r;lmzphing" individual atoms?3 lm 6zpux5;tm:sre. h

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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, th;)nlpj7a8 xfg;t np4ce angular momentum of an electron around thf7;atx lpcj8gp nn4 );e 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 orbit whertif y)nr*/:l q6 n3wtre 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 ahoh:7p b+y y4sszxdy rc9920r 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 adjacent orbit ra5d*. 4aqw8swdd z,izhdii 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 wavelengowpi +lcl7 :2pth corresponding to the most intense light emitted by a giant star of surface temperature 5000 Kp7i :coll2+ wp?

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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 ra6**.e8mh fdhpi +:o wse5qtqidiation from an object with temperatu5 wi q.qs e8o**i6h+tmfpd:ehre $100 ^{\circ}C$?

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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 xcjmr,cnhv5. .vw o0 9GHz?

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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 cq2 ;ohh6rdpo*jib8q- arried 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 radiation has enb5fip: u/v4+jxs pme7 ergy $4.7 \times 10^{-25} \; J$?

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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 radi ejj lger+:kw3-:arz-ation has an 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 light having wavefkk p/ voql //67yp8nvw i.4dte+r ix9length 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 carried by a pn4qriqjyf(7* xapi u+2u*i +rhoton 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 50hah s1my+d2unkz6 qd(z6d+n 7-W sodium vapor lamp? (Assume that the lamp's light is monochromatic and of wavemqd (aku6 6dnzh h1y+sz 2d7n+length $589 \; nm$.)

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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 fu99 nqe )wb .9oll8mnssnction of 4.5 eV. Find the maximum kinetic energy of the photoelect 9elln9.nm8bwq )os9s rons 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 is incident on a metal surface, the sth*xjyds:* +yll jdg,*opping potential of the photoelectrons is 0.500 eV. j :d***s hg,y l+xldjy 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, tvwb u/0iq0j v:dmp e;-he stopping potential of the photoelectrons ijdp eub;i0v:qm0 / vw-s 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, the stoppinpjub o3mz 8bnkc(); zqfe;03bg potential of the photoelectrons is 0.500 eV. What is b bcj; pzu(e3n k0mf;qo38 zb)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.h ,6bnpca,py bmc9x* with work function 2.50 eV. If a 1.0-V stopping potential is required to make the bm pcapyxnh 9,.,c*6bphotocurrent 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 90e. What isce *nxg-i4y/fw 3cli; the wavelength shift4ii xe;ycf -/*3wlcng ?

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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 sj:nqtr 5ljl+cujxd-e) y pv,6 1z p+9xhift is observed to be, lx+vey n+zp1:p9rjj 5 )dqtxjc-6 lu
$2.1 \times 10^{-12} \; m$ 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 by free elewp9sk;pme 92 i3tx *;*/sp.b ygzyhfdctrons at 130e. ;syz/ifpm*bpk;e .9px9tdh 3s *y w2g What is 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 matter wave associated with a ball of mass 0.50 k)r 3d 4u50cgb)rgrxu gg movinc xd)g4urgubg50 3r r)g with a speed 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 ma6mu s2vuj4 lkur/u** uss 200 g moving with a speed of 30*s6u rukvju*uu/ 42ml 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 asw 7bnk yarc7jbd,c2;3sociated with an electron moving with a speed n,y7kb2 d3wcar7bj ;cof $2.5 \times 10^7 \; m/s$?

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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 throug1 yjh*4s1zwmtp zju- 1z;6egk h a potential difference of 150 V. What is its wavelength?t14ykwu1-p;1 z hzjz jgme*6s

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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 differency/k y5rah j ik ,w.. 6m2+eo(xojph2ade of 100 V. What is its waveleno6/rxiohak+yjk ( p d2eh5m.,ya 2. jwgth?

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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 differwnkbf3(8lxw/xbo1 e 5m7lkc* ence of 100 V. What is its moment3welxklo( 1 *cfb xm/ b5n8w7kum 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 kine cb7gv psqd+c:n 4g1aoq/zq+*tic ener/gdca+vn4o c*7:+ p1bqqsq zggy?

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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 kd )c.fvdy hi2;g has a wavelength 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 energy in eV? (Thisxn;er ).hkb 0ei6s4ic energy is not in the relativistic region.)cx)e;0i n46es bi. rhk

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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 transitf,re.dru2x w.) ,jotw ion from the n = 5 state to the n = 2 state. What is the wavelength of the emittx2.rrw , ofujewt. ),ded 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 hyfz3 , /( fyx*bjpym9hci n*yg-drogen atom in its ground state is -13.6 eV. What is the energy wb* 39gcji,pz ( y-fmyx *yhn/fhen 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 co(1tuk v(tzcw*8hex86qpg 2 of energy 12.09 eV. To which sexkt1 *(u8c (vw2 hp 6ocztg8qtate 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 0s ,axnb6j0tratom?

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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 e32gqp 6b f;t a.p)fquilt46 f8m1dhudnergy 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, thekxo/ 1w)c+wd.fu qx1 f 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 8ssje,vpthi,);eo 5qof the hydrogen atom is -13.58 eV. What is its energy in state n;5h ,sepeito)sqj v 8, = 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 694cs.gd-(gx 7zl +;i5pch wu *pk.3 nm. What is the energy difference between the . gxw( ch;s*d-ul z +5c7ipgpktwo energy states 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 or3cq+td imbrr)0r( w6fbit characterized by n = 4. r (bmcr0d3qr)f t6iw+ How many of the electron's de Broglie wavelengths fit into the circumference of this orbit?

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