A laser with power output of 2.0mW at a wavelength of 400nm is projected onto a calcium metal. The binding energy is 2.31ev. a. How many electrons per second are ejected? b. What power is carried away by the electrons?

A laser with power output of 2.0mW at a wavelength of 400nm is projected onto a calcium metal. The binding energy is 2.31ev. a. How many electrons per second are ejected? b. What power is carried away by the electrons?

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter29: Introduction To Quantum Physics

Section: Chapter Questions

Problem 16PE: A laser with a power output of 2.00 mW at a wavelength of 400 nm is projected onto calcium metal....

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1. A laser with power output of 2.0mW at a wavelength of 400nm is projected onto a calcium metal. The binding energy is 2.31ev.

a. How many electrons per second are ejected?

b. What power is carried away by the electrons?

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