MCQ
Radioactive samples are stored in lead boxes because it is:
- AHeavy.
- BStrong.
- ✓Good absorber.
- DBad conductor.
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(Given : nitrogen molecule weight :
$4.64 \times 10^{-26}\, kg ,$ Boltzman constant :
$1.38 \times 10^{-23}\, J / K ,$ Planck constant :
$\left.6.63 \times 10^{-34}\, J . s \right)$
