Which expression correctly relates the half-life of a radioactive nuclide to its…

PHYSICS · Single correct · A Level · Physics · Nuclear physics · Nuclear physics

Problem

Which expression correctly relates the half-life

t_{1/2}

of a radioactive nuclide to its decay constant

\lambda

? (a)

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

(b)

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

(c)

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

(d)

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