Half - life period of a Radioactive element X is same as the mean - life time of another radio active element Y. If initially both have same number of atoms then
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a
X decay faster than Y
b
Y decay faster than X
c
X and Y decay at same rate
d
Initial decay rate of X and Y are same
answer is B.
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Detailed Solution
T1/2X=TmeanY0.693λx=1λyλx=0.693λyλy>λxSo Y decay faster