Select the correct statements.

Options

A. Amount decayed in a half-line depends upon the nature of radioactive species.
B. The fraction of amount deacayed is given by `1-e^(-lambda t)`
C. Amoutn decauyed in first half is maximum.
D. None of these

Answer

`(a,b,c)`

Explanation

`(N_(0))/(N) = e^(lambda t)`
`alpha = (N_(0) - N)/(N_(0)) = (Ne^(lambda t) - N)/(Ne^(lambda t)) = 1 - e^(lambda t)`
Also, `t_(1//2)` depedns on the nature of radioactive species and `t_(1//2)` in amount `prop N_(0)`.