1.

This question contains Statement - 1 and Statement -2 Of the four choice given after the Statements , choose the one that best decribes the two Statements Statement- 1: Energy is reased when heavy underge fission or light nuclei undergo fasion and Statement- 2: for nuclei , binding energy nucleon increases with increasing `Z` while for light nuclei it decreases with increasing `Z`A. Statement - 1 is false ,Statement - 2 is trueB. Statement - 1 is true ,Statement - 2 is true, Statement - 2 is a correct explanation for Statement - 1C. Statement - 1 is true ,Statement - 2 is true, Statement - 2 is not a correct explanation for Statement - 1D. Statement - 1 is true ,Statement - 2 is false

Answer» Correct Answer - D
we know that energy is released when heavy nuclei undergo fission or light nuclei undergo fission Therefore statement (1) is correct .
The second statement is false because for heavy nuclei the bimding energy per nucleon decrease with increase `Z `and for light nuclei B.E nucleon increase with increasing `Z`


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