Photoelectric effect - Quiz
A) Photoconductive effect B) Compton effect C) Photoelectric effect D) Photovoltaic effect
A) Valence electrons B) Conduction electrons C) Photoelectrons D) Core electrons
A) Classical mechanics B) Thermodynamics C) Electromagnetism D) Quantum chemistry
A) Dislodge electrons only above a certain frequency B) Not affect electrons at all C) Transfer energy in discrete packets D) Transfer energy continuously, leading to electron emission when enough energy accumulates
A) Light is a continuous wave B) Light consists of discrete energy packets called photons C) Light does not interact with electrons D) Light's energy accumulates over time from a continuous wave
A) Cut off frequency B) Saturation frequency C) Stopping frequency D) Threshold frequency
A) The kinetic energy becomes zero B) The kinetic energy remains the same C) The maximum kinetic energy of the emitted electrons increases D) The kinetic energy decreases
A) Decreases the kinetic energy of the photoelectrons B) Does not affect the rate at which electrons are ejected C) Decreases the rate at which electrons are ejected D) Increases the rate at which electrons are ejected
A) Less than 10−9 second B) More than 10−3 second C) More than 1 second D) Exactly 1 second
A) Mass spectrometry B) X-ray diffraction C) Angle-resolved photoemission spectroscopy D) Nuclear magnetic resonance
A) Insulators B) Metals and other conductors C) Gases D) Semiconductors
A) Threshold potential B) Saturation potential C) Stopping potential or cut off potential D) Peak potential
A) eVo = f B) eVo = I C) eVo = Vo D) eVo = Kmax
A) Decreases the energy barrier to photoemission B) Has no effect on the energy barrier C) Eliminates the energy barrier D) Increases the energy barrier to photoemission
A) Internal photoemission B) Surface photoemission C) Vacuum photoemission D) External photoemission
A) External photoemission B) Surface photoemission C) Internal photoemission D) Vacuum photoemission
A) The kinetic energy decreases B) The kinetic energy remains the same C) The kinetic energy increases D) The kinetic energy becomes zero
A) The stopping voltage has to increase B) The stopping voltage remains the same C) The stopping voltage decreases D) The stopping voltage becomes zero
A) The stopping voltage remains the same B) The stopping voltage increases C) The stopping voltage becomes zero D) The stopping voltage decreases
A) Dependent only on the frequency of light B) Independent of the emitting material's quantum properties C) Dependent on the emitting material's quantum properties D) Dependent only on the intensity of light
A) Decreases the amount of UV B) Increases the amount of UV C) Has no effect on the amount of UV D) Alters the amount of UV
A) Halogen lamps B) Incandescent bulbs C) Xenon arc lamps D) LEDs
A) Incandescent bulbs B) Xenon arc lamps C) Fluorescent lamps D) LEDs
A) Ultraviolet lasers and synchrotron radiation B) Gamma-ray lasers and synchrotron radiation C) Microwave lasers and synchrotron radiation D) Infrared lasers and synchrotron radiation
A) A fluctuating external voltage B) A negative external voltage C) A positive external voltage D) No external voltage
A) The photoelectric current becomes zero B) The photoelectric current remains the same C) The photoelectric current increases D) The photoelectric current decreases
A) Sigmoidal B) Exponential C) Linear D) Parabolic
A) Increases the photoelectric current B) Decreases the photoelectric current C) Does not affect the photoelectric current D) Makes the photoelectric current zero
A) Increases the number of electrons reaching the collector B) Does not affect the electrons reaching the collector C) Prevents all but the highest-energy electrons from reaching the collector D) Allows all electrons to reach the collector
A) It is a function of photon energy B) It is a function of light frequency C) It is independent of photon energy D) It is a function of light intensity
A) It measures angular distributions to infer material properties B) It measures energy distributions to infer material properties C) It measures intensity distributions to infer material properties D) It measures frequency distributions to infer material properties
A) Niels Bohr B) Max Planck C) Erwin Schrödinger D) Albert Einstein
A) The Schrödinger constant B) The Planck constant C) The Einstein constant D) The Bohr constant
A) K_max = hν / W B) K_max = hν - W C) K_max = W - hν D) K_max = hν + W
A) V_o = (h/e)(ν + ν_o) B) V_o = (h/e)(ν_o - ν) C) V_o = (h/e)(ν - ν_o) D) V_o = (h/e)(ν / ν_o)
A) Willoughby Smith B) Heinrich Hertz C) Johann Elster D) Alexandre Edmond Becquerel
A) 1873 B) 1897 C) 1839 D) 1887
A) Philipp Lenard B) Wilhelm Hallwachs C) Heinrich Hertz D) J. J. Thomson
A) J. J. Thomson B) Albert Einstein C) Lenard D) Max Planck
A) 1921 B) 1905 C) 1900 D) 1914
A) Georgi Nadjakov B) Max Planck C) Albert Einstein D) Robert A. Millikan
A) Albert Einstein B) Max Planck C) Robert A. Millikan D) Gilbert N. Lewis
A) The wave-particle duality of light. B) The photoelectret state in dielectrics. C) The quantization of light energy. D) The photoelectric effect in gases.
A) 100 attoseconds B) 20 attoseconds C) 1 femtosecond D) 45 attoseconds
A) Plasma screens B) Liquid crystal displays C) Video camera tubes like the Image dissector D) Cathode ray tubes
A) Ultraviolet region B) Infrared region C) Visible light region D) Gamma-ray region
A) Copper B) Lead C) Iron D) Aluminum
A) σ_pe + σ_compton B) σ_pe + σ_compton + σ_pp C) σ_compton + σ_pp D) σ_pe + σ_pp
A) Compton scattering B) Photoelectric effect C) Pair production D) Thermal absorption
A) Above 0.5 MeV B) Below 1 MeV C) Below 0.5 MeV D) Above 1.022 MeV
A) Thermal absorption B) Photoelectric absorption C) Pair production D) Compton scattering |
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