A 630-nm light falls on a photoelectric surface and electrons with the maximum kinetic energy of 0.2 eV are emitted. The Plank's constant is 6.625 x 1034 J s. Then (a) Calculate the work function of the photoelectric metal surface in eV: (b) Find the cutoff frequency of the surface in Hertz: (c) When the surface of same work function as calculated above is illuminated with light of wavelength 370 nm, then find the stopping potential in Volts,
A 630-nm light falls on a photoelectric surface and electrons with the maximum kinetic energy of 0.2 eV are emitted. The Plank's constant is 6.625 x 1034 J s. Then (a) Calculate the work function of the photoelectric metal surface in eV: (b) Find the cutoff frequency of the surface in Hertz: (c) When the surface of same work function as calculated above is illuminated with light of wavelength 370 nm, then find the stopping potential in Volts,
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
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Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Question
Transcribed Image Text:A 630-nm light falls on a photoelectric surface
and electrons with the maximum kinetic energy
of 0.2 eV are emitted. The Plank's constant is
6.625 x 1034 J s. Then
(a) Calculate the work function of the
photoelectric metal surface in evV:
(b) Find the cutoff frequency of the surface in
Hertz:
(c) When the surface of same work function as
calculated above is illuminated with light of
wavelength 370 nm, then find the stopping
potential in Volts,
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