The reason for the four level laser system to be more efficient than the three-level type needs to be explained. Concept introduction: In a normal system there are more atoms in the low energy states as compared to the number of atoms in the high energy states. Population inversion is said to occur when there are more atoms in the high energy states than in the low energy states.

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What is the missing reactant in this organic reaction? OH H + R Δ CH3-CH2-CH-CH3 O CH3 CH3-CH2-C-O-CH-CH2-CH3 + H2O Specifically, in the drawing area below draw the condensed structure of R. If there is more than one reasonable answer, you can draw any one of them. If there is no reasonable answer, check the No answe box under the drawing area. Explanation Check Click anywhere to draw the first atom of your structure. C O2025 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Cer

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Chapter 7, Problem 7.7QAP

Interpretation Introduction

Interpretation:

The reason for the four level laser system to be more efficient than the three-level type needs to be explained.

Concept introduction:

In a normal system there are more atoms in the low energy states as compared to the number of atoms in the high energy states. Population inversion is said to occur when there are more atoms in the high energy states than in the low energy states.

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