A radioactive sample `S_(1)` having an acitivity of `5 mu Ci` has twice the number of nuclei as another sample `S_(2)` which has a activity of `10 mu Ci`. The half lives of `S_(1)` and `S_(2)` can be

A radioactive sample S_(1) having an activity 5 mu Ci has twice the number of inucle as another sample S_(2) which has as activity of 10 mu Ci . The half lives of S_(1) and S_(2) can be

At some instant, a radioactive sample S_(1) having an activity 5 muCi has twice the number of nuclei as another sample S_(2) which has an activity of 10 muCi . The half lives of S_(1) and S_(2) are :

At some instant, a radioactive sample S_(1) having an activity 5 muCi has twice the number of nuclei as another sample S_(2) which has an activity of 10 muCi . The half lives of S_(1) and S_(2) are :

A radioactive sample S_1 having an activity of 5muCi has twice the number of nuclei as another sample S_2 which has an activity of 10muCi . The half-lives of S_1 and S_2 can be

A radioactive sample S_1 having an activity of 5muCi has twice the number of nuclei as another sample S_2 which has an activity of 10muCi . The half-lives of S_1 and S_2 can be

A radioactive sample S_1 having an activity of 5muCi has twice the number of nuclei as another sample S_2 which has an activity of 10muCi . The half-lives of S_1 and S_2 can be

A radioactive sample S_(1) having the activity A_(1) has twice the number of nuclei as another sample S_(2) of activity A_(2) If A_(2)=2A_(1) , then the ratio of half life of S_(1) to the life of S_(2) is