The fraction of a radioactive material which reamins active after time t is `9//16`. The fraction which remains active after time `t//2` will be .

The fraction of a radioactive material which remains active after time t is 9//16 . The fraction which remains active after time t//2 will be .

The friction of a radioactive sample which remains active aftertime t is (9)/(16) . What friction remains active after (t)/(2) time?

The fraction of the radioactive sample will remain undecayed after 4 half-life periods is

The fraction f of radioactive material that has decayed in time t , varies with time t . The correct variation id given by the curve. .

Consider a radioactive nuclide which follow decay rate given by A (t) = A_(0)2^(-(l//t_(0))), where A (f) is the fraction of radioactive material remaining after time t from the initial A_(0) at zero time. Let A_(1) be the fraction of orginal activity which remains after 120 hours. likewise A_(2) is the fraction of 200 hours. If (A_(1))/(A_(2))= 1.6, then the half-life (t_(0)) will be

A fraction of (5)/(9) of a radioactive substance decays in time. What fraction of the substance would had been active after time (1)/(2)

Mean life of a radioactive sample is t_0 . What fraction of sample remains left after time t_0ln_2 ?

Mean life of a radioactive sample is t_0 . What fraction of sample remains left after time t_0ln_2 ?

A radioactive material has half-life of 10 days. What fraction of the material would remain after 30 days ?