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The ratio of half-life times of two elem...

The ratio of half-life times of two elements `A` and `B` is `(T_(A))/(T_(B))`. The ratio of respective decay constant `(lambda_(A))/(lambda_(B))`,is

A

`T_(B)//T_(A)`

B

`T_(A)//T_(B)`

C

`(T_(A)+T_(B))/(T_(A))`

D

`(T_(A)-T_(B))/(T_(A))`

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