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习题练习：Photoelectric Effect
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 作者: admin  发布日期: 2024-08-05 13:48    总分: 8分  得分: _____________

答题人: 游客未登录  开始时间: 24年08月05日 13:48  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  
  94.31: Light of a sinylkto8u :w;swr 8/ji;x r ctsdd0;k**gle frequency falls on a photoelectric material but no electronlcr8*t;y/ks tddo ;xj w k:8u*0rsi w;s are emitted. Electrons may be emitted if the:

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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  97.36: A student performs the Photoelectry,1f 8dhal m+ob:j h,n.fqe15vuna-bnf; 1q fic Effect Experiment and obtains the data depicted in the accompanying1vj,d,y5f 8anfqnfhmhb -eb:1ofnqaul. ;1+ graph of $E_{Km}$, the maximum kinetic energy of the photoelectrons in eV, versus f, the frequency of the photons in $10^{14}$ Hz. What is the approximate work function for this material?



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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  96.28: A photon with frequency f behaofek o2e0.m5h ves as if it had a mass equal to:

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4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  14.32: Planck’s constant is multiplied by the sp eqjt*4u p87leeed of light. The resulting value then is divided by three meters. This final value has the units of which one op *qe87ujlt4ef the following quantities?

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5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  10.48: Which of the following wavelengths (in nm) oe4 g99msps ig(fs*,lef electromagnetic radiation will produce photoelectrons of the least kinetic energy if the radiation is incident on a ma*pg99( emgil 4fs,ss eterial with a work function of 4.80 eV?

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6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  12.45: A stationary atom of -+huh8 qc;:) s+vnw rxfxea(v3-wvhmmass $4.00\times10^{-26}kg$ spontaneously emits a photon of energy 10.0 eV. Which one of the following choices best represents the speed, in units of m/s, of the atom after emitting the photon?

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7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  16.45: Light of wavelength 250 nm shines onto a metallic surface. fbck 7*:jkc3cIt is known that the electrons ejected from the surface range in speed as 0 ≤ v ≤ 4.85× 105 m/s. What is the wo k:*cfc73 cbkjrk function of the surface?

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  06.46: In the photoele.w z 8j/b3v zgxd:med(ctric effect experiment, a stopping potential of V_{stop}$ is needed when light of frequency $f_0$ shines on the electron-emitting metal surface. If the metal surface on which the light shines is replaced with a new material that has half the work function, what is the new stopping potential ???????????????? , for light of frequency $f_0$ shining on it?

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  • 姓名:游客(未登录)
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    总分:8分 及格:4.8分 时间:不限时
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