two radioactive substances A and B have equal . The ratio of their activities RB/RA decreases according to e^−3t . If the half-life of A is In2

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At a given instant, say t = 0, two radioactive substances A and B have equal . The ratio of their activities RB/RA decreases according to e^−3t . If the half-life of A is In2, the half-life of B is :
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At a given instant, say t = 0, two radioactive substances A and B have equal . The ratio of their activities RB/RA decreases according to e^−3t . If the half-life of A is In2, the half-life of B is : At a given instant say t = 0 the half-life of B is : [...]
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Tags: At a given instant , say t = 0 , the half-life of B is : , two radioactive substances A and B have equal . The ratio of their activities RB/RA decreases according to e^−3t . If the half-life of A is In2 ,