(3.3. The work function of Platinum is twice that of the work function of calcium. If the minimumphoton energy required to emit photoelectrons from the surface of platinum is E, what is theminimum energy for the surface of calcium?

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Answered: (3.3. The work function of Platinum is…

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter27: Quantum Theory

Section27.1: A Particle Model Of Waves

Problem 13PP

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EK 1.91 eV
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The following data gives stopping potential Vo versus wavelength for photoelectrons produced from a metal surface. (Be sure to include the correct units and use three significant figures.) Table 1 Vo (nm) (volts) 50 22.3 100 9.29 150 5,20 200 3.09 250 1.84 300 1.04 Use an analysis similar to that used in the inlab procedure to determine the work function (in ev) for this surface. (Use 1 ev = 1,602 x 10-19 J, e- 1.602 x 10-19 C, c = 2.998 x 10 m/s, and h= 6.626 x 10-34 )-s = 4.136 x 10"15 ev -s as necessary.) X ev
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(3.3. The work function of Platinum is twice that of the work function of calcium. If the minimum photon energy required to emit photoelectrons from the surface of platinum is E, what is the minimum energy for the surface of calcium?