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  4. In any fission process the ratio ( text mass of fission products / text mass of parent nucleus ) is

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Q. In any fission process the ratio $\frac{\text { mass of fission products }}{\text { mass of parent nucleus }}$ is

AIPMTAIPMT 2005Atoms

Solution:

In fission process, when a parent nucleus breaks into daughter products, then some mass is lost in the form of energy. Thus, mass of fission products $<$ mass of parent nucleus
$\frac{\text { Mass of fission products }}{\text { Mass of parent nucleus }}<1$
Note: 1. Nuclear fission was discovered by Ottohan and Strassman.
2. In each fission reaction a tremendous amount of energy $(\approx 190 MeV )$ is realised