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习题练习:Photoelectric Effect

 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 photoelectric material but no el ) wpo/2,7xuhddno .epectrons are emitted) 7 en./d,ud2pow xpho. 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 Photoelectric Effect Experimez yn3lxa8,+i1 )i r2gwaqz6c mnt and obtains the data depic+i1w ,irzxq6 zl8amanc2 )g y3ted in the accompanying 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 0 d9yv)yk6hzi 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 speed ofo9-ds lhhl 0 f(4lun lhx*f)8a light. The resulting value then is divided by three meters. This final vda*0h l(l oxhn9u -f4lhs8lf)alue has the units of which one of 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 wavelengt1kc-kt p xry,vl7,i :hhs (in nm) of electromagnetic radiation will produce photoelectrons of the least kinetic energy if the radiation is incident on a material withpxt i1h:, 7l vyr-ckk, 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 b4 ze,mv i6:zfmass $4.00\times10^{-26}kg$ 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 nmhj rw*f+u5hqw9 a,*fx shines onto 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 the work funx jqh,* awfhr+*w5uf9 ction 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 expe4+i3sg fvgw *hriment, 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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