# NEET Physics Nuclei Questions Solved

A sample contains 16 gm of a radioactive material, the half life of which is two days. After 32 days, the amount of radioactive material left in the sample is

(a) Less than 1 mg         (b) $\frac{1}{4}\mathrm{gm}$
(c) $\frac{1}{2}\mathrm{gm}$                       (d) 1 gm