Physics

Problem

When a graph of

\ln N

(y-axis) versus time

t

(x-axis) is drawn for a radioactive sample, the magnitude of the slope of the straight line gives which physical quantity? a)

T_{1/2}

(half-life of the sample) b) Activity of the sample (in

\mathrm{Bq}

) c) Decay constant of the sample d)

\dfrac{1}{T_{1/2}}

(reciprocal of the half-life)