10 g of a radioactive isotope is reduced to 1.25 g in 12 years. Therefore half-life period of the isotope is

1.0 g of a radioactive isotope left 125 mg after 24 hr. The half-life period of the isotope is a. 8 hr b. 24 hr c. 6 hr d. 4 hr

1.0 g of a radioactive isotope left 125 mg after 24 hr. The half-life period of the isotope is a. 8 hr b. 24 hr c. 6 hr d. 4 hr

Eight grams of a radioactive substance is reduced to 0.5 g after 1 hour. The half life period of the radioactive substance is :

Sixteen gram of a radioactive substance are reduced to 1 g in one hour. The half life period of the radioactive substance is :

After 24 hour, only 0.125" g" out of the initial quantity of 1 g of a radioactive isotope remains behind. The half-life period of the radioactive isotope in hours is

If 9.0 g of a radioactive isotope has a half life period of 10 hrs. The half life period of 3.0 g of the same substance is:

If 9.0 g of a radioactive isotope has a half life period of 10 hrs. The half life period of 3.0 g of the same substance is: