Why Do We See Black Lines in an Absorption Spectrum

question 12

Essay

Why do we see black lines in an absorption spectrum if the absorbed photons are (almost) instantaneously reemitted by the atoms in the cloud?

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Definitions:

Reserve Requirements

Regulations set by central banks determining the minimum amount of reserves that banks must hold against deposits.

Discount Rate

The interest rate charged to commercial banks and other financial institutions for loans they take from the Federal Reserve's discount window.

Induce

To lead or move by persuasion or influence, often to bring about or provoke a specific action or outcome.

Government Securities

Government securities are financial instruments issued by the government to finance its expenditures, offering a fixed return and including treasures, bonds, and bills.