A photocathode has a work function of 2.4 eV. The photocathode is monochromatic radiation in which the photon energy is 3.5 eV. What is the wavelength of the illuminating radiation? Let 1 eV= 1.60 × 10-19 J, the mass of an electron m=9.11 x 1031 the speed of light c = 3.00 x 10° m/s, and Planck's constant h=4.136 x 10DEV s. kg, O 380 nm O 300 nm 410 nm O 330 nm O 350 nm

A photocathode has a work function of 2.4 eV. The photocathode is monochromatic radiation in which the photon energy is 3.5 eV. What is the wavelength of the illuminating radiation? Let 1 eV= 1.60 × 10-19 J, the mass of an electron m=9.11 x 1031 the speed of light c = 3.00 x 10° m/s, and Planck's constant h=4.136 x 10DEV s. kg, O 380 nm O 300 nm 410 nm O 330 nm O 350 nm

Modern Physics

3rd Edition

ISBN:9781111794378

Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer

Publisher:Raymond A. Serway, Clement J. Moses, Curt A. Moyer

Chapter3: The Quantum Theroy Of Light

Section: Chapter Questions

Problem 36P

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