1.

The power radiated by a star and its mass ma are related by (P)/(P_(0))=((m)/(M_(0)))^(7//2) where P_(0) and M_(0) are power radiated by the Sun and mass of the Sun respectively. Assume that the fraction of mass lost by the star since its birth is alpha(ltlt1). Calculate the age of the star in terms of alpha,M_(0)P and P_(0).

Answer»

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ANSWER :`(alphaM_(0)C^(2))/(p_(0)^(2//7)P^(5//7))`


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