In three to four sentences, explain how the photoelectric effect supports a particle model of electromagnetic radiation. As part of your response, evaluate the idea that radiation frequency and intensity highlight how the wave model is inadequate to explain the photoelectric effect.

In three to four sentences, explain how the photoelectric effect supports a particle model of electromagnetic radiation. As part of your response, evaluate the idea that radiation frequency and intensity highlight how the wave model is inadequate to explain the photoelectric effect.

Modern Physics

3rd Edition

ISBN:9781111794378

Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer

Publisher:Raymond A. Serway, Clement J. Moses, Curt A. Moyer

Chapter3: The Quantum Theroy Of Light

Section: Chapter Questions

Problem 42P

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Question

In three to four sentences, explain how the photoelectric effect supports a particle model of electromagnetic
radiation. As part of your response, evaluate the idea that radiation frequency and intensity highlight how the wave
model is inadequate to explain the photoelectric effect.

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Define the terms (i) ‘cut-off voltage’ and (ii) ‘threshold frequency’ in relation to the pheno-menon of photoelectric effect. Using Einstein’s photoelectric equation show how the cut-off voltage and threshold frequency for a given photosensitive material can be determined with the help of a suitable plot/graph.
please if you can write pen and scan clear to read. very gratefull.
Question #1 a) Plot the energy spectral density p(2) of black-body radiation at T=3000 K and at 7= 5000 K. (These correspond to the apparent temperatures of "warm white" and "cool white" light bulbs.) (Note: Show both curves on a single graph, using a standard plotting software. Report the wave- length in nanometers.) b) For each of these two temperatures, at which wavelength is the radiation intensity maximum? (Note: Report the wavelengths in nanometers. Your answers should be consistent with the curves from part a), of course.)
B
Determine the energy of a 891 nm photon in eV. Express your answer in three decimal places.
Using the data from the table, what is the threshold frequency of the unidentified photosensitive surface?
I. of wavelength 2.0 x 10"m are upon a photo-emissive surface work function is 6.6 x 1019 joule. Calculate the maximum kinetic energy of the ejected photoelectrons' Describe what would happen to the kinetic energy of the emitted photoelectrons if only the intensity of the light is increased. Explain your reasoning.
Mean free path formula is attached from the book. Thank you.
Calculate kinetic energy.
Sketch the graph showing variation of stopping potential with frequency of incident radiations for two photosensitive materials A and B having threshold frequencies vA > vB. (i) In which case is the stopping potential more and why? (ii) Does the slope of the graph depend on the nature of the material used? Explain.
how would you answer this? The maximum kinetic energy of photoelectrons is plotted as a function of the frequency of incident light. The slope of this graph is.. would appreciate work shown for this question, thanks a Planck’s constant. b Rydberg’s constant. c Coulomb’s constant. d Newton’s gravitational constant.
PLEASE PROVIDE FULL ANSWERS!a. The maximum energy of photoelectrons from Al is 2.3 eV for radiation of 200 nm and 0.9 eV for radiation of 216 nm. Use these data to calculate the Planck’s constant and the work function of Al. b. The threshold wavelength for the photoelectric effect in tungsten is 270 nm. Calculate the work function of tungsten, and calculate the maximum kinetic energy that a photoelectron can have when radiation of 120 nm falls on tungsten