A Typical White Dwarf Has a Surface Temperature About 4

question 124

Multiple Choice

A typical white dwarf has a surface temperature about 4 times that of the Sun and a radius about 1 percent that of the Sun. What can one determine about the luminosity of a typical white dwarf from this information?

• A) The white dwarf will be less luminous than the Sun.
• B) The white dwarf and the Sun will have about the same luminosity.
• C) The white dwarf will be more luminous than the Sun.
• D) Nothing can be concluded about the relative luminosities from this information.

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Definitions:

Net Cash

The amount of cash and cash equivalents minus any liabilities or financial obligations.

Cash Basis

An accounting method where revenues and expenses are recognized only when cash is exchanged.

Financing Activities

Transactions involving raising capital or repaying funds to and from investors and creditors, as reflected in the cash flow statement.

Net Cash

The amount of cash that remains after deducting all operational, financial, and investment activities over a period.