If M is the mass of a star and L is its luminosity,which of the following is proportional to the main sequence lifetime of a star?

Name: If M is the mass of a star and L is its luminosity,which of the following is proportional to the main sequence lifetime of a star?
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Question

Quizplus · Accepted Answer

The main sequence lifetime of a star is proportional to its mass divided by its luminosity (M / L), because the lifetime depends on how much fuel (mass) the star has and how quickly it uses it (luminosity).

If M Is the Mass of a Star and L