Light of wavelength 25 x 10 -7 m is incident on a material of work function 0.375 ev. Calculate the photonenergy. [Take h = 6.6 x 10 -34 js; c = 3.0 x 10 8 m/s; 1eV = 1.6 x 10 -19 J]O a. 12 x 10 - 20 JO b. 7.9 x 10 - 20 JO c.6.75 x 10 - 19 JO d. 8.2 x 10 - 20 J

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Answered: Light of wavelength 25 x 10 -7 m is…

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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Light of wavelength 25 x 10 -7 m is incident on a material of work function 0.375 eV. Calculate the photon energy. [Take h = 6.6 x 10 -3ª js; c = 3.0 x 10 8 m/s; 1eV = 1.6 x 10 -19 J] O a. 12 x 10 - 20 J O b. 7.9 x 10 - 20 J O c.6.75 x 10 - 19 j O d. 8.2 x 10 - 20 j