A certain radionuclide has a decay constant of

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

Problem

1.2 \times 10^{-8}\,\text{s}^{-1}

. What is its half-life, expressed in years? (a)

2.6\,\text{yr}

(b)

0.80\,\text{yr}

(c)

1.8\,\text{yr}

(d)

1.8 \times 10^{1}\,\text{yr}