Two radioactive nuclides A and B have half-lives 50 min and 10 min respectively . A fresh sample contains the nuclides of B to be eight times that of A. How much time should elapse so that the mumber of nuclides of A becomes double of B ?

Two radioactive nuclides A and B have half-lives of 20 and 10 minutes respectively. If starts an experiment with one mole of each of them their mole ratio after a time interval of one hour will be

Two radioactive nuclides A and B have half life of t and 2t respectively . If we start an experiment with one mole of each of them, what will be the mole ratio after a time interval of 6 t ?

The radio active nuclides A and B have half lives t and 2t respectivey. If we start an experiment with one mole of each of them, the mole ratio after time interval of 6t will be

Two radioactive nuclides A and B have half-lives in the ratio 2:3 respectively. An experiment is made with one mole of each of them. Calculate the molar ratio of A and B after a time interval of three times of half-line of A .

Two pipes A and B can fill a tank in 12 and 16 min, respectively. If both the pipes are opened simultaneously , after how much time should B be closed so that the tank is full 9 min ?

Two radioactive elements X and Y have half - lives of 6 min and 15 min respectively . An experiment starts with 8 times as many atoms of X as Y . How long it takes for the number of atoms of X left equals the number of atoms of Y left ?

Two radioactive substances A and B have half lives of T and 2T respectively. Samples of a and b contain equal number of nuclei initially. After a time 4T , the ratio of the number of undecayed nuclei of A to the number if undecayed nuclei of A to the number of undeacyed nuclei of B is

Two pipes A and B can fill a tank in 24 and 32 min, respectively. If both the pipes are opened together, after how much time pipeB should be closed so that the tank is full in 9 min?