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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 single frequency falls on a photoelec wm:5fu;+trw9wd+tf 5c0 sccgtric material but no electrons are emitted. Electrons may be emitted if m : wc+w55trf w9; ct0ufgd+csthe:

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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 Photoelectric Effect Experiment a(vmh ; llz qkfq :fj79xno14y.nd obtains the data depicted in the accomp4 nf :fq.1k;9zml7 jxyholq(vanying 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 behaves as if it had a mass equal;xwi;k4 vi yid 5fic-k+:b8te 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 speed of1 * lu2l+3 ej,xcsgmil light. The resulting value then is divided by three meters. This final value has the units of which one of the followi u e3 +si2gmx,llc1*ljng 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 wa.fnjshng vdb -tz17.z7vc-f 6 velengths (in nm) of electromagnetic radiation will produce photoelectrons of the least kinetic energy if the radiation is bt.d1v-7fn -hz6.cf7v s n gzjincident on a material 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 atosm1yg hvlr1eu 8a40rh;20ts9g sy l6u.q6q afm of mass $4.00\times10^{-26}kg$ 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 ontobo1 rh4, tbeubmiflmo 901w* ( a metallic surface. It is known that the electrons ejected from the surface range in speed as 0 ≤ v ≤ 4.85× 105 m/s. What is tf1,oh* 9lb(mm0 o14ebirtub whe work 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 photoelectric effect experiment, a stopping potenticc. la3k ge1 kymm5a0.al 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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