Astronomy Today (9th Edition)
Astronomy Today (9th Edition)
9th Edition
ISBN: 9780134450278
Author: Eric Chaisson, Steve McMillan
Publisher: PEARSON
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Chapter 4, Problem 8P
To determine

The minimum frequency and the longest wavelength of radiation for which the detector registers a response if a minimum energy of 5×1019J (3.1 eV) is required to dislodge an electron from a metal surface.

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