The decay constant of a radioactive substance is 0.173 `(year)""^(-1)`. ThereforeA. nearly 63% of the radioactive substance will decay in `(1/0.173years)`B. half life of the radio active substance is `(1/0.173years)`C. One sixth of the radioactive substance will be left after 8 yearD. all the above statements are true

The decay constant of a radioactive substance is 0.173 `(year)""^(-1)`

1.	The decay constant of a radioactive substance is 0.173 `(year)""^(-1)`. ThereforeA. nearly 63% of the radioactive substance will decay in `(1/0.173years)`B. half life of the radio active substance is `(1/0.173years)`C. One sixth of the radioactive substance will be left after 8 yearD. all the above statements are true
Answer» Correct Answer - a `lamda=2.303/tlog.N""_(0)/N)`

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