Ex2/A metal surface is illuminated with light of different wavelengths and the corresponding stopping potentials of the photoelectrons V, are found to be as follows. A (A) 3,660 4,050 4,360 4,920 5,460 5,790 V (V) 1.48 1.15 0.93 0.62 0.36 0.24 Determine Planck's constant, the threshold wavelength and the work function. Ex3 / the work function of a tungsten surface is 5.4eV when the surface is illuminated by light of wavelength 75nm the maximum photoelectron energy 1.7ev, Determine Planck's constant h?

Ex2/A metal surface is illuminated with light of different wavelengths and the corresponding stopping potentials of the photoelectrons V, are found to be as follows. A (A) 3,660 4,050 4,360 4,920 5,460 5,790 V (V) 1.48 1.15 0.93 0.62 0.36 0.24 Determine Planck's constant, the threshold wavelength and the work function. Ex3 / the work function of a tungsten surface is 5.4eV when the surface is illuminated by light of wavelength 75nm the maximum photoelectron energy 1.7ev, Determine Planck's constant h?

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter27: Quantum Theory

Section: Chapter Questions

Problem 67A

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Question

Ex2/A metal surface is illuminated with light of different wavelengths and the
corresponding stopping potentials of the photoelectrons V, are found to be as
follows.
1 (A) 3,660 4,050 4,360 4,920 5,460 5,790
V (V) 1.48
1.15
0.93
0.62
0.36
0.24
Determine Planck's constant, the threshold wavelength and the work function.
Ex3 / the work function of a tungsten surface is 5.4eV when the surface is
illuminated by light of wavelength 75nm the maximum photoelectron energy is
1.7ev, Determine Planck's constant h?

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