`x g` of a radioactive substance will be decomposed to `7//8x g` in `40 s` if the half-life periof is `10 s`.

If 8g of a radioactive substance decays into 0.5 g in 1 h, then the half-life of the 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 :

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

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

If in 3160 years, a radioactive substance becomes one-fourth of the original amount, find it’s the half-life period.

If in 3160 years, a radioactive substance becomes one-fourth of the original amount, find it’s the half-life period.

16 g of a radio active substance is reduced to 0.5 g after 1 hour. The half life of the radioactive substance in minutes is

16 g of a radio active substance is reduced to 0.5 g after 1 hour. The half life of the radioactive substance in minutes is