Use the Following Graph and the Relationship τ ∝ M/L

question 21

Multiple Choice

Use the following graph and the relationship τ ∝ M/L to estimate the main-sequence lifetime of a star with a mass equal to 10 times that of the Sun.Note that the Sun's main-sequence lifetime is about 10¹⁰ years.

• A)3 million years
• B)30 million years
• C)300 million years
• D)3 billion years
• E)30 billion years

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