A radioactive material has an initial mass of 16g . After 120 days it reduce to 0.5g .Half-life of the radioactive element is

A radioactive material has an initial amount 16 gm After 120 days it reduces to 1 gm . Then the half-life of radioactive material is

Half life of a radioactive material is 24 hour and its initial quantity is 512 gram. After three days quantity of the radioactive material will be

A radioactive substance has a half life of 5 days. After 20 days it was foundd the 3 g of the isotope left in the container. The initial weight of the isotope was a 48 g b. 36 g c. 18 g d. 24 g

A sample contains 16 gm of radioactive material, the half-life of which is two days. After 32 days, the amount of radioactive material left in the sample is

A radioactive material of mass number 198 decays with half life of 3 days. If initial amount of radioactive material is 2mg then its initial activity will be?

If a radioactive material has half life of one year, a sample will be reduced to 1/8 of its mass in

A sample of radioactive isotope with a half life of 20 days weighs 1 g . After 40 days the weight of the remaining elements is a. 0.5 g b. 0.0 g c. 0.25 g d. 1//6 g

If a radioactive material remains 25% after 16 days, then its half life will be