A Collection of Atoms Has 20% of the Sample in a State

question 22

Multiple Choice

A collection of atoms has 20% of the sample in a state 5.9 eV above the ground state. If these emit coherent radiation, what is the wavelength of the laser light produced? (c = 3.00 × 10⁸ m/s,
H = 6.626 × 10^-34 J ∙ s, 1 eV = 1.60 × 10^-19 J)

• A) 210 nm
• B) 91 nm
• C) 340 nm
• D) 34 nm

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Definitions:

Actual Production

The real and measurable output of goods or services from a production process or system.

Normal Production

The expected volume of output under standard operating conditions without external disruptions.

Standard Costing System

An accounting system that uses predetermined costs for products or services to assess the efficiency of operations by comparing them to actual costs incurred.

Standard Quantity Allowed

The quantity of materials or resources authorized for use in the production of a certain level of output under standard operating conditions.