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Updated on : 2022-09-05

Solution

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Correct option is B)

$A=A_{o}e_{−λt}$

Therefore, $12=16e_{−λt}$

$t=λlog(4/3) $

$t=λlog(4/3) $

Also, $λ=t_{(1/2)}log2 $

Solving above equations, we get:

$t=2391years$

$t=2391years$

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