The "Inverted Population" Necessary for Laser Action

question 9

Multiple Choice

The "inverted population" necessary for laser action

• A)refers to the negative energy levels of electrons.
• B)comes from upside-down levels in certain atoms.
• C)refers to the higher energy state being populated more than one below it.
• D)is another way of saying "coherent."
• E)is another way of saying "incoherent."

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Definitions:

Unamortized Discount

An unamortized discount refers to the portion of a bond's initial discount that has not yet been amortized or gradually written off over the life of the bond.

Redeemed

Usually refers to the repurchase or paying off of a debt or equity security at its original value or at a predetermined value before it matures.

Effective Interest Rate Method

The effective interest rate method is a technique for calculating the actual interest rate for a financial product over its life, considering compounding.

Bonds Payable

A long-term liability account that records the face value of the bonds a company is obligated to repay at a specified future date.