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College Physics

1st Edition
Paul Peter Urone + 1 other
ISBN: 9781938168000

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Section
BuyFindarrow_forward

College Physics

1st Edition
Paul Peter Urone + 1 other
ISBN: 9781938168000
Textbook Problem

Integrated Concepts

Calculate the minimum amount of energy in joules needed to create a population inversion in a helium-neon laser containing 1.00 × 10 4 moles of neon.

To determine

The minimum amount of energy in joules required to create a population inversion in a helium-neon laser containing 1.00×104moles of neon.

Explanation

Given Data:

Given helium-neon laser containing 1.00×104moles of neon

Formula Used:

Energy required is calculated as

  E=NΔE

Where N= Number of atoms

  ΔE= Minimum number of energy required for one atom.

Calculation:

We know that 1 mole of atom contains 6.02×1023atoms

Thus, number of atoms in 1.00×104moles of neon is calculated as

  N=1.00×104×6.02×1023atoms

And, ΔE=20

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