A main-sequence star has a certain lifetime, t, because of thermonuclear "burning" of the hydrogen in the core of the star. How is this lifetime on the main sequence related to the mass M and luminosity L of the star? ( $\alpha$ means "proportional to") A)t M/L $\alpha$ B)t ML $\alpha$ C)t L/M $\alpha$ D)t M^3.5 $\alpha$

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The Answer of A main-sequence star has a certain lifetime, t, because of thermonuclear "burning" of the hydrogen in the core of the star. How is this lifetime on the main sequence related to the mass M and luminosity L of the star? ( $\alpha$ means "proportional to") A)t M/L $\alpha$ B)t ML $\alpha$ C)t L/M $\alpha$ D)t M^3.5 $\alpha$

A Main-Sequence Star Has a Certain Lifetime, T, Because of Thermonuclear