A Laser Must Be Pumped to Achieve

question 64

Multiple Choice

A laser must be pumped to achieve:

• A)a metastable state
• B)fast response
• C)stimulated emission
• D)population inversion
• E)the same wavelength for all photons

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Definitions:

Expense Account

An account used to record the costs incurred by a business in the process of generating revenue, excluding direct materials and direct labor expenses.

Asset Account

An account on a company's balance sheet that represents the value of the assets owned.

Unearned Revenue

Unearned Revenue represents money received by a company for goods or services yet to be delivered or performed, considered a liability until the revenue is earned.

Liability Account

An accounting category used for recording debts or obligations that a company owes to others, typically excluding equity or ownership stakes.