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This equation was given by the great scientist Albert Einstein. This is the relation between mass and the energy. According to Einstein, the mass and energy one and the same.

This equation is used in the calculation of the energy liberated in the fusion and fission reaction of the nuclei. where the mass is the defect mass or the mass converted into the energy, c is the velocity of light (c= 3x10^8) and E is energy.

for example : if in a fission of the U-235 the mass defect is 0.2233 amu , then the energy released will be equals to

E= mc2

=> E=0.2233x9x10^16

=> E= 2.097x10^16 J

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14y ago

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