Photoelectric Effect - 无忧得胜-网上国际课程 (5edu.win)

?作业考试练习?美国物理杯赛(Physics Bowl)?Photoelectric Effect

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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: _____________

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94.31: Light of a single frequency falls on a pnj 3ghmg -1pj(hotoelectric material but no electrons are emip(jm -j3ng1hgtted. Electrons may be emitted if the:

A. frequency of the light is decreased.

B. frequency of the light is increased.

C. intensity of the light is decreased.

D. intensity of the light is increased.

E. velocity of the light is increased.

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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 and obtains the da .py,n 1zexik)1 s5oxcta depicted in then oiycs51ke)x.x1z p , 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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单选题 ( 1.0 分) 切至整卷模式搜藏此题

96.28: A photon with frequency f ;j6ojuq2- actbehaves as if it had a mass equal to:

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单选题 ( 1.0 分) 切至整卷模式搜藏此题

14.32: Planck’s constant is multipl (bo4n1 heiiu8ied by the speed of light. The resulting value then is divided by three meters. This final value has the units of which one of the fol4u neh8ib oi(1lowing quantities?

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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) of electromagnetic radiatpq(e p5a4re5y6e c8 lgion will produce photoelectrons of the least kinetic energy if the radiation is incident on a materia5 qeae prgelc458yp6( l with a work function of 4.80 eV?

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单选题 ( 1.0 分) 切至整卷模式搜藏此题

12.45: A stationary atom of mass q4 esm6 lg41or$4.00\times10^{-26}kg$ 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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单选题 ( 1.0 分) 切至整卷模式搜藏此题

16.45: Light of wavelength 250 nm+:tv ypft- ef-qg9. gh ;1scss shines onto a metallic surface. It is known that the electrons ejected from the surface range in speed as 0 ≤ 1+f ss9:vct gtys h--g;fe.pq v ≤ 4.85× 105 m/s. What is the work function of the surface?

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06.46: In the photoelectric effect experiment, a stopping potential 9d-olu2(2b(s* suk 8 ft5 gz.uieczznof 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?

A. $V_{new}\:>2V_{stop}$

B. $V_{new}\:=2V_{stop}$

C. $V_{stop}<V_{new}\:<2V_{stop}$

D. $V_{new}\:=V_{stop}$

E. It is indeterminate with the given information