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  • The half - life of a substance is 6 yrs, then the total amount of substance deft after 36 years, when initial amount is 266 grams isOption: 1 9 g

The half - life of a substance is 6 yrs, then the total amount of substance deft after 36 years, when initial amount is 266 grams is

Option: 1

9 g


Option: 2

8 g


Option: 3

7 g


Option: 4

4.1 g


Answers (1)

best_answer

\begin{aligned} & t_{1 / 2}=6 \text { years } \\ & T=36 \text { years } \end{aligned}

Hence Portal no. of half life periods

          \mathrm{ \ \frac{36}{6}=6 }

\mathrm{\therefore \text { Amount left }=\frac{266}{(2)^6}=4.1 \mathrm{~g}}

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Riya

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