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At time t=O, some radioactive gas is inj...

At time t=O, some radioactive gas is injected into a sealed vessel. At time T. some more mass of the sam gas is injected into the same vessel. Which one of the following graphs best represetns the variation of the logarithm of the acitivity A of the gas with time t?

A

B

C

D

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The correct Answer is:
C
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