An alpha active element has molar mass M and half life of τ. A large – InterviewSolution

1.	An alpha active element has molar mass M and half life of τ. A large plate of thickness a is made from the radioactive element. Density of the plate is ρ. The number of alpha particles emitted in unit time from unit surface area of the plate is found to be 1xln(2)τaρNAM. Here, the value of x is (NA is Avogadro's number ).
Answer» An alpha active element has molar mass $M$ and half life of $τ$ . A large plate of thickness $a$ is made from the radioactive element. Density of the plate is $ρ$ . The number of alpha particles emitted in unit time from unit surface area of the plate is found to be $\frac{1}{x} \frac{l n (2)}{τ} \frac{a ρ N_{A}}{M}$ . Here, the value of $x$ is ( $N_{A}$ is Avogadro's number ).

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