Two Stars Have the Same Diameter and Are at the Same

question 44

Multiple Choice

Two stars have the same diameter and are at the same distance from us (but in different parts of the sky.) Star A has a temperature of 4000 K, while star B has a temperature of 8000K. Which of the following statements is true:

• A) the two stars have the same total energy flux (luminosity)
• B) star B has twice the energy flux (luminosity) that star A has
• C) star B has one half the energy flux (luminosity) that star A has
• D) star B has 16 times the energy flux (luminosity) that star A has
• E) Sorry, professor, we don't have enough information to compare the energy flux (luminosity) of the two stars
• Section 5.3: Spectroscopy in Astronomy

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Definitions:

Straight-line

A method of depreciation that allocates an equal expense rate to each year of an asset’s useful life.

Accelerated Methods

Depreciation methods that allocate more depreciation expense to the earlier years of an asset's life.

Depreciation

Strategically spreading out the cost of a tangible asset throughout its period of usefulness.

Accounting Estimate

An approximation of a financial transaction's value when precise measurement is not possible, often used in accrual accounting.