Electrons are ejected from a metallic surface with speeds ranging up to 4.1 x 10³ m/s when light with a wavelength of 630nm is used. What is the cutoff frequency for this surface? Express your answer in terms of 1014 Hz and round it to the nearest hundredth. For example, if you get 1.234 × 1014 Hz, you type in 1.23. (Hint: you should first calculate the work function of the surface.) Use h=6.626x10-34 Js; c=3 x108 m/s. ; me=9.11x10-31kg

Electrons are ejected from a metallic surface with speeds ranging up to 4.1 x 10³ m/s when light with a wavelength of 630nm is used. What is the cutoff frequency for this surface? Express your answer in terms of 1014 Hz and round it to the nearest hundredth. For example, if you get 1.234 × 1014 Hz, you type in 1.23. (Hint: you should first calculate the work function of the surface.) Use h=6.626x10-34 Js; c=3 x108 m/s. ; me=9.11x10-31kg

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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