Stars a and B Have the Same Radius, but the Spectrum

question 21

Multiple Choice

Stars A and B have the same radius, but the spectrum of star A peaks at a wavelength of 500 nm, whereas star B's spectrum peaks at 1000 nm. What is the ratio of the luminosity of star A to the luminosity of star B?

• A) 1/16
• B) 1/4
• C) 4
• D) 16

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Definitions:

Diagnostic Category

A classification used in psychiatry and psychology to organize and describe types and categories of mental disorders.

Partial-syndrome Eating Disorders

Eating disorders that do not fully meet the diagnostic criteria for specific disorders but still involve significant eating disturbances.

Longitudinal Study

Research that follows the same subjects over a period of time, often years or decades, to observe changes and developments.

Self-esteem

An individual’s overall subjective emotional evaluation of their own worth; it is a judgment of oneself as well as an attitude toward the self.