Show all working explaining detaillly each step 52. In a photoelectric experiment, electromagnetic radiation of wavelength 240 nm and intensity 8.2 x 10 Wm2 is incident normally on a metal surface of area 2.0 x 104 m?. What is the number of photons incidentper second?A. 2.0 x 1015В. 2.0 х 1018С. 2.0 х 1021D. 2.0 x 1024

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In a photoelectric experiment, electromagnetic radiation of wavelength 240 nm and intensity 8.2 x 10 w m² is incident normally on a metal surface of area 2.0 x 104 m². What is the number of photons incident per second? A. 2.0 x 1015 B. 2.0 x 108 C. 2.0 x 1021 D. 2.0 x 1024

In a photoelectric experiment, electromagnetic radiation of wavelength 240 nm and intensity 8.2 x 10 w m² is incident normally on a metal surface of area 2.0 x 104 m². What is the number of photons incident per second? A. 2.0 x 1015 B. 2.0 x 108 C. 2.0 x 1021 D. 2.0 x 1024

Glencoe Physics: Principles and Problems, Student Edition

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ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter27: Quantum Theory

Section: Chapter Questions

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52. In a photoelectric experiment, electromagnetic radiation of wavelength 240 nm and intensity 8.2 x 10 W
m2 is incident normally on a metal surface of area 2.0 x 104 m?. What is the number of photons incident
per second?
A. 2.0 x 1015
В. 2.0 х 1018
С. 2.0 х 1021
D. 2.0 x 1024

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