In a photoelectric-effect experiment, the maximum kinetic energy of electrons is (2.8 mathrm{eV}). When the wavelength of
Question:
In a photoelectric-effect experiment, the maximum kinetic energy of electrons is \(2.8 \mathrm{eV}\). When the wavelength of the light is increased by \(50 \%\), the maximum energy decreases to \(1.1 \mathrm{eV}\). What are
(a) the work function of the cathode and
(b) the initial wavelength?
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Step by Step Answer:
We can use the equations related to the photoelectric effect to solve this problem The kinetic energy of the emitted electrons KE is given by KE textEnergy of incident photon textWork function Mathema...View the full answer
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Related Book For 
College Physics A Strategic Approach
ISBN: 9780321907240
3rd Edition
Authors: Randall D. Knight, Brian Jones, Stuart Field
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