JEE PHYSICS MCQ: NUCLEI

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Application +4 | -1

The half-life of

A{u^{198}}

is 2.7 days. The activity of 1.50 mg of

A{u^{198}}

if its atomic weight is

198\,g\,mo{l^{ - 1}}

\left( {{N_A}\, = \,6 \times {{10}^{23}}\,/\,mol} \right)

View answer and explanation

Correct option: B

357

Ci

Option B (357 Ci) is correct because the activity is calculated using the half-life, amount, and atomic weight of Au¹⁹⁸.

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