Define the activity of a radionuclide. Write its SI unit. Give a plot of the activity of a radioactive species versus time.

Define the activity of a radio nuclide. Write its S.I. unit. Give a plot of the activity of a radioactive species versus time. How long will a radioactive isotope, whose half life is T years, take for its activity to reduce to 1//8 th of its initial value ?

Define the activity of a radio nuclide. Write its S.I. unit. Give a plot of the activity of a radioactive species versus time. How long will a radioactive isotope, whose half life is T years, take for its activity to reduce to 1//8 th of its initial value ?

Define the conductivity of a conductor. Write its SI unit

Define the activity of a given radioactive substance. Write its SI unit.

What are unit of activity of radioactive elements?

define activity of a radioactive material and write its Si units.

Write the SI unit of activity of a radioactive nuclide.

Define the Activity of a radioactive sample. Write its S.I. unit. A radioactive sample has activity of 10000 disintegrations per second (dps) after 20 hours. After next 10 hours its Activity reduces to 5000 dps. Find out its half-life and initial activity.

Define impulse. Give its SI unit.