# NEET Physics Nuclei Questions Solved

If T is the half life of a radioactive material, then the fraction that would remain after a time $\frac{\mathrm{T}}{2}$ is
(a) $\frac{1}{2}$              (b) $\frac{3}{4}$
(c) $\frac{1}{\sqrt{2}}$           (d) $\frac{\sqrt{2}-1}{\sqrt{2}}$

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