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