The decay constant of a radioactive subs...

The decay constant of a radioactive substance is 0.173 `("years")^(-1)`. Therefore:

A

Nearly `63%` of the radioactive substance will decay in `(1//0.173)` year

B

Half life of the radio active substance is `(1//0.173)` years.

C

One-fourth of the radioactive substance will be left after nearly 8 years

D

All the above statement are true

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The correct Answer is:

A, C

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