Question 2: Deduce the work function for sodium from Fig. Q2. The intersection of the straight line with the horizontal axis is the cutoff frequency, vo=5.8×1014 /sec. For most conducting metals the value of the work function is of the order of a few electron volts. Calculate the photon energy of a typical microwave wavelength of λ = 5 cm. Can this energy sufficient to eject photoelectrons from metal surfaces? Why? Stopping potential (V) 3 2 0 VO 8 12 4 Frequency (1014/sec) Fig. Q2

Question 2: Deduce the work function for sodium from Fig. Q2. The intersection of the straight line with the horizontal axis is the cutoff frequency, vo=5.8×1014 /sec. For most conducting metals the value of the work function is of the order of a few electron volts. Calculate the photon energy of a typical microwave wavelength of λ = 5 cm. Can this energy sufficient to eject photoelectrons from metal surfaces? Why? Stopping potential (V) 3 2 0 VO 8 12 4 Frequency (1014/sec) Fig. Q2

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

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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