The photoelectric threshold wavelength of a tungsten surface is 272nm. Calculate the maximum kinetic energy of the electrons ejected from this tungsten surface by ultraviolet radiation of frequency 1.45 x 10¹5 Hz. Express the answer in joules and electron volts.

The photoelectric threshold wavelength of a tungsten surface is 272nm. Calculate the maximum kinetic energy of the electrons ejected from this tungsten surface by ultraviolet radiation of frequency 1.45 x 10¹5 Hz. Express the answer in joules and electron volts.

University Physics Volume 3

17th Edition

ISBN:9781938168185

Author:William Moebs, Jeff Sanny

Publisher:William Moebs, Jeff Sanny

Chapter6: Photons And Matter Waves

Section: Chapter Questions

Problem 108P: What is the de Brogue wavelength of an electron that is accelerated from rest through a potential...

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Question

The photoelectric threshold wavelength of a tungsten surface is 272nm. Calculate the maximum
kinetic energy of the electrons ejected from this tungsten surface by ultraviolet radiation of frequency
1.45 x 10¹5 Hz. Express the answer in joules and electron volts.

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