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 ?

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 radio active sample contains 10^(6) radioactive nucleus it s half life is 20 sec . Number of remaining nucleus after 10 seconds.

A radioactive substance has 10^8 nuclei. Its half life is 30 s . The number of nuclei left after 15 s is nearly

A radioactive substance has 10^8 nuclei. Its half life is 30 s . The number of nuclei left after 15 s is nearly

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?

A radioactive sample has 8.0xx10^(18) active nuclei at a certain instant. How many of these nuclei will still be in the active state after two half-life ("in" xx10^(18)) ?

A radioactive sample has 8.0xx10^(18) active nuclei at a certain instant. How many of these nuclei will still be in the active state after two half-life ("in" xx10^(18)) ?