The threshold wavelength for the photoelectric effect for silver is 262 nm. 1) Determine the work function for silver. (Express your answer to three significant figures.) x10-19 J Submit
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- Pls answer number 2 thank you1.3. A photoelectric cell has a cutoff wavelength, λc, of 262.7 nm. ☹ (a) What is the work function of the cell? (b) What current would be produced by the cell if the wavelength was increased to 300 nm? 400 nm? 500 nm? (c) What stopping voltage Vo would be required if the illuminating wavelength were to be reduced to 200 nm? (d) What would be the maximum kinetic energy of the photo-electrons in the case of 200 nm illumination? ¹February 28, 2024 1The work function of a certain metal is found to be 1.82 eV. What is the stopping potential required to to stop the current in a photoelectric effect experiment if the wavelength of the incident light is 413 nm. Round your answer to 3 significant figures. Add your answer
- Problem 4 (2 ...us): When light with a wavelength of 400 nm strikes a certain metal surface, the maximum kinetic energy of the emitted photoelectrons is measured to be 1.10 eV. a. (ts) What is the work function of the metal? b.ts) If light of wavelength 300 nm strikes the same metal surface, what is the shortest possible deBroglie wavelength of the emitted photoelectrons? (The electron speed is much slower than the speed of light.)If a photon of wavelength 0.0665 nm hits a free electron and is scattered at an angle of 35◦ from its original direction, findat. the change in wavelength of this photon,b. the wavelength of the scattered photon,vs. the change in energy of the photon (is it a loss or a gain?), and d. the energy gained by the electron.A photoelectric effect is observed in a particular metal when a maximum wavelength of 700 nm is used. a.Determine the work function. b.What is the stopping potential of the electrons if a wavelength of 500 nm is used instead? c.Graph the maximum kinetic energy of the photoelectrons as a function of the light illuminated over this metal.
- helpThe work function of cesium is 2.1 eV. ▾ Part A Determine the lowest frequency photon that can eject an electron from cesium. Express your answer with the appropriate units. Templates Symbols undo' rego Teset keyboard shortcuts Help Value Units Request Answer Part B Determine the maximum possible kinetic energy in electron volts of a photoelectron ejected from the metal that absorbs a 320-nm photon. Express your answer in electronvolts. Templates Symbols undo' redo Teset keyboard shortcuts Help Kmax= eV f= SubmitThe work function of aluminum is 4.26 ev. What is the maximum velocity of an electron emitted from aluminum after the absorption of a photon of wavelength 117 nm. Give your answer in m/s. Round your answer to 2 decimal places. Add your answer Question 10 A photon Compton scatters from an electron. At what scattering angle for the photon will the electron acquire the largest kinetic energy? 45 degrees 90 degrees C o degress D 180 degrees