The Equation for the Luminosity of a Star in Terms $\sigma$

question 13

Multiple Choice

The equation for the luminosity of a star in terms of its surface temperature is L = (surface area) $\sigma$ T⁴ where $\sigma$ is the Stefan-Boltzmann constant. This suggests that when a plot is made of luminosities versus temperature

• A) stars of the same temperature but different radii should occupy different points on the plot.
• B) all stars should plot along the line.
• C) larger stars must have higher temperatures.
• D) smaller stars must have higher temperatures.

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Definitions:

Prostate Gland

A gland in the male reproductive system that produces a fluid component of semen.

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