There are `4sqrt2xx10^6` radioactive nuclei in a given radioactive sample. If half life of sample is 20s, how many nuclei will decay in 10seconds?

There are 10^(10) radioactive nuclei in a given radioactive element. Its half-life time is 1 minute . How many nuclei will remain after 30 seconds ? (sqrt(2)=1.414)

A sample of a radioactive substance has 10^(6) radioactive nuclei. Its half life time is 20 s How many nuclei will remain after 10 s ?

A sample of a radioactive substance has 10^(6) radioactive nuclei. Its half life time is 20 s How many nuclei will remain after 10 s ?

Three fourths of the active nuclei present in a radioactive sample decay in 3//4s . The half life of the sample is

Three fourthers of the active nuclei present in a redioactive sample decay in 3/4s. The half life of the sample is

7/8th of the active nuclei present in a radioactive sample has decayed in 8 s. The half-life of the sample is

7/8th of the active nuclei present in a radioactive sample has decayed in 8 s. The half-life of the sample is