Photoelectric Effect - 题库网 (tiku.one)

1#

94.31: Light of a single frequency falhr ugok(egmo66p-mpm*y/8b 08 llly; ls on a photoelectric material but no electrons are emitted. Electronsellgbum *plm-8 y6 m(ogy08;/kp hr6o 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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2#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

97.36: A student performs thubyw *(+ ad 1*pn7fdthe Photoelectric Effect Experiment and obtains the data depicted in the accompanying (b wft+d 17d*ypnuha*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 fub-p as;9 gicf(* pc)batt7t 18/yboz behaves 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 speed of light. The resulting valu3mtx 1.lr ayzq5 bx6m64c.z o1p.s rmje then is divided by three meters. This final value has the units of whichz1moxm 4b. rqp .lj6 xcs3a6mt1y.z5r 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 wavelengths )gz (4qjvf i(p(in nm) of electromagnetic radiation will produce photoelectrons of the least g4pj v)(q zf(ikinetic energy if the radiation is incident 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 atom oaxqq zs3n.kinz (:)t dtd:8z+f 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 nmcw4d (,0)s-qzw yr9 4shppngm 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 wqdn pc9-) (sh0wg4mz4s y,prthe 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 potential of V_{stop(h m.1qi4ejxi,mp c ,u}$ 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

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