Decay and Half-Life (HSC SSCE Physics): Quizzes

Behaviour of large samples of nuclei

Time for half the nuclei to decay

Less than 5%

$\text{s}^{-1}$

By the same fraction each second

$\lambda = \frac{\ln 2}{t_{1/2}}$

3.1%

To minimize patient radiation exposure

6.25%

Faster decay rate