Generally Speaking, How Does the Surface Temperature and Luminosity of a Protostar

question 115

Multiple Choice

Generally speaking, how does the surface temperature and luminosity of a protostar compare to the surface temperature and luminosity of the main- sequence star it becomes?

• A)A main- sequence star is hotter and brighter than it was as a protostar.
• B)A main- sequence star is cooler and brighter than it was as a protostar.
• C)A main- sequence star is hotter and dimmer than it was as a protostar.
• D)A main- sequence star is cooler and dimmer than it was as a protostar.

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Definitions:

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