Two Stars Are Found to Have the Same Luminosity

question 23

Multiple Choice

Two stars are found to have the same luminosity.However,one star has twice the surface temperature of the other.From this information,what can you determine about their radii?

• A) The hotter star has half the radius of the cooler star.
• B) The cooler star has half the radius of the hotter star.
• C) The hotter star has a quarter the radius of the cooler star.
• D) Nothing can be determined about the radii from this information.

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Definitions:

Vertical

In business and economics, it refers to the integration of various stages of production and distribution under the control of a single company.

Two-Dimensional Graph

A visualization tool showing the relationship between two variables on a plane, with one variable along the x-axis and the other along the y-axis.

Overallocated Resources

Refers to a situation where more resources are being used in the production of a good or service than what is considered efficient, leading to wastefulness or reduced economic welfare.

Marginal Benefits

The additional satisfaction or value that one receives from consuming or producing one more unit of a good or service.