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The photoelectric effect can be used in engineering designs for practical applications. For example, infrared goggles used in night-vision applications have materials that give an electrical signal with exposure to the relatively long wavelength of IR light. If the energy needed for signal generation is 2.0 x 10-20 J, what is the minimum wavelength? What is the frequency of light that can be detected?

The photoelectric effect can be used in engineering designs for practical applications. For example, infrared goggles used in night-vision applications have materials that give an electrical signal with exposure to the relatively long wavelength of IR light. If the energy needed for signal generation is 2.0 x 10-20 J, what is the minimum wavelength? What is the frequency of light that can be detected?

Chemistry: Principles and Practice
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter7: Electronic Structure
Section: Chapter Questions
Problem 7.30QE
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The photoelectric effect can be used in engineering designs for practical applications. For example, infrared goggles used in night-vision applications have materials that give an electrical signal with exposure to the relatively long wavelength of IR light. If the energy needed for signal generation is 2.0 x 10-20 J, what is the minimum wavelength? What is the frequency of light that can be detected? c = 2.998 x 108 m/s h = 6.626 x 10-34 J s m 1
Transcribed Image Text:The photoelectric effect can be used in engineering designs for practical applications. For example, infrared goggles used in night-vision applications have materials that give an electrical signal with exposure to the relatively long wavelength of IR light. If the energy needed for signal generation is 2.0 x 10-20 J, what is the minimum wavelength? What is the frequency of light that can be detected? c = 2.998 x 108 m/s h = 6.626 x 10-34 J s m 1
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