Question 553: Atoms & Nuclei

Question

The half life of a radioactive nuclide is 100 hours. The fraction of original activity that will remain after 150 hours would be :

Accepted Answer

$${A \over {{A_0}}} = {\left( {{1 \over 2}} \right)^{t/{T_H}}} = {\left( {{1 \over 2}} \right)^{150/100}} = {1 \over {2\sqrt 2 }}$$

Answer

$${2 \over {3\sqrt 2 }}$$

Answer

$${1 \over 2}$$

Answer

$${1 \over {2\sqrt 2 }}$$

Answer

$${2 \over 3}$$

Atoms & Nuclei