1.

It has been estimated that the total power radiated by the sun is 3.8 xx 10^(26) J per second . The source of energy of stars is a thermonucleur fission reaction . Energy released in the process of fusion is due to mass defect . Q = Delta mc^(2) Mass equivalent to energy 931 Mev is

Answer»

`6.023 XX 10^(-27)` kg
`1.66 xx 10^(-27)` kg
`16.66 xx 10^(-27)` kg
`16.02 xx 10^(-27)` kg

Solution :1 amu MASS DEFECT `(1.66 xx 10^(-17) kg ) implies 931 . 5 MeV`


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