Question

Three specimens $A, B, C$ of same radioactive element has activities $1$ microcurie, $1$ rutherford and $1$ becquerel respectively. Which specimen has maximum mass?

• A. A
• B. B
• C. C
• D. all have equal masses

Answer 1

Answer: (B)

$1$ becquerel $=1 \,dis / s$
$1$ rutherford $=10^{6} \,dis / s$
$1$ curie $=3.7 \times 10^{10}\, dis / s$