Which of the Following Statements About Brown Dwarfs Is Not

question 67

Multiple Choice

Which of the following statements about brown dwarfs is not true?

• A)Brown dwarfs eventually collapse to become white dwarfs.
• B)Brown dwarfs are supported against gravity by degeneracy pressure,which does not depend on the object's temperature.
• C)Brown dwarfs form like ordinary stars but are too small to sustain nuclear fusion in their cores.
• D)All brown dwarfs have masses less than about 8% that of our Sun.

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Definitions:

Material

A substance or mixture of substances that constitutes an object, used in the production and manufacturing of goods or constructions.

Density

A measure of mass per unit volume of a substance, often expressed in grams per cubic centimeter or kilograms per cubic meter.

Volume

The volume is the space filled by an object or substance, or the space encased by a container.

Sample

A portion or quantity of material taken from a larger body for the purpose of analysis or testing.