The Spectra of Most Stars Are Dark- Line Spectra Because___________

question 28

Multiple Choice

The spectra of most stars are dark- line spectra because___________ .

• A) elements in the earth's atmosphere absorb in these dark- line bands, blocking out the frequencies in the dark bands
• B) electrons decaying to a lower energy state emit a photon at a fixed energy, leaving dark bands between the emissions
• C) elements in the Sun's outer atmosphere emit radiation between these dark bands
• D) elements in the Sun's outer atmosphere absorb in these dark- line bands, blocking the radiation in those bands

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Definitions:

Market Value

The current price at which an asset or service can be bought or sold in a marketplace.

Financial Asset

Assets that derive value from a contractual claim, such as stocks, bonds, bank deposits, and other investments.

Future Cash Flows

Future cash flows refer to the estimated amount of money that is expected to be received or paid out by a company in future periods.

Sinking Fund

Facilitates the orderly retirement of a bond issue. This can be achieved in one of two ways: the company can call in for redemption (at par value) a certain percentage of bonds each year or the company may buy the required amount of bonds on the open market.