What Is the Difference Between Brightness and Luminosity

question 22

Multiple Choice

What is the difference between brightness and luminosity?

• A) These are different names for the same property.
• B) Luminosity is how we see a star;brightness is how much light it emits.
• C) Brightness is how we see a star;luminosity is how much light it emits.
• D) Luminosity measures size;brightness measures temperature.

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Definitions:

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