Two radioactive samples P and Q give straight lines on a common –time plot with…

PHYSICS · Single correct · CBSE · Physics · Nuclei · Nuclei

Problem

Two radioactive samples P and Q give straight lines on a common

\ln N

–time plot with slopes

-0.030\,\text{s}^{-1}

and

-0.015\,\text{s}^{-1}

respectively. Which statement about their half-lives is correct? (a) Both have the same

T_{1/2}

(b)

T_{1/2}

of P is twice that of Q (c)

T_{1/2}

of Q is twice that of P (d)

T_{1/2}

of Q is half that of P