Physics

Problem

Which one of the following expresses the correct relation between the decay constant

\lambda

and the half-life

t_{1/2}

of a radionuclide? a)

\lambda = \dfrac{t_{1/2}}{\ln 2}

\lambda = \dfrac{\ln 2}{t_{1/2}}

\lambda = \dfrac{1}{t_{1/2}\,\ln 2}

\lambda = \dfrac{\ln(1/2)}{t_{1/2}}