Two radioactive substance `A` and `B` have decay constants `5 lambda` and `lambda` respectively. At `t=0` they have the same number of nuclei. The ratio of number of nuclei of nuclei of `A` to those of `B` will be `(1/e)^(2)` after a time interval

Two raidoactive substances A and B Have decay constants 5lambda and lambda respectively. At t=0 they have the same number of nuclei.The ratio of number of nuclei of A to those of B will be after (1/e)^2 a time interval:

Two radioactive substances A and B have decay constants 5lamda and lamda respectively. At t-0, they have the same number of nuclei. The ratio of number of nuclei of A to that of B will be (1//e)^(2) after a time interval of

The radioactive materials X_1 and X_2 have decay constants 5lambda and lambda respectively. If intially they have the same number of nuclei, then the ratio of number of nuclei of X_1 to that of X_2 will be 1/e

Two radioactive material A and B have decay constants 10 lambda and lambda , respectively. If initially they have a the same number of nuclei, then the ratio of the number of nuclei of A to that of B will be 1//e after a time 1/(n lambda) , where n is ___________

Two radioactive materials X_(1) and X_(2) have decay constants 5 lambda and lambda respectively. If initially they have the same number of nuclei, then the ratio of the number of muclei of X_(1) to that of X_(2) will be 1/e after a time

Two radioactive materials A and B have decay constants 10lambda and lambda , respectively. If initially they have the same number of nuclei, then the ratio of the number of nuclei of A of that of B will be 1//e after a time :

Two radioactive materials A and B have decay constants 5lambda and lambda respectively. Initially both A and B have the same number of nuclei. The ratio of the number of nuclei of A to that of B will be 1/e , after the time x/(8lambda) then x is :