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. i. How many electrons per second are ejected. ii.what power us carried away by the electronic?

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. i. How many electrons per second are ejected. ii.what power us carried away by the electronic?

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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Concept explainers

Rutherford's scattering experiment

Rutherford’s scattering experiment is also known as the gold foil experiment. This experiment disproved the plum pudding model of J.J. Thomson. In a gold foil experiment, high-energy alpha particles are made to strike a thin gold foil. The scattered alpha particles are detected using a detector. This experiment showed that the positive charge of the atom is at the center. Most of the atom’s mass is also confined to a small volume at the center. This region is known as the nucleus of the atom.

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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.

i. How many electrons per second are ejected.

ii.what power us carried away by the electronic?

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