Draw a graph of time t versus number of undecay nucleus in a radioactive sample and write its charac

English

Gujarati

Hindi

13.Nuclei

medium

Draw a graph of the time $t$ versus the number of undecay nucleus in a radioactive sample and write its characteristics.

Option A

Option B

Option C

Option D

Solution

The following characteristics are available from graph :

$(1)$ The number of undecay nucleus in the radioactive sample decreases exponentially with time. In the beginning the distintegration occurs quickly and as time goes on the disintegration slowly decreases. This graph is also known as decay curve.

$(2)$ From the graph one can determine the rate of disintegration and half life.

$(3)$ If decay constant is large then the rate of disintegration is also large.

$(4)$ Regardless of the type of radioactive substance it takes the entire decay for infinite time.

Standard 12

Physics

Which sample contains greater number of nuclei : a $5.00- \mu Ci$ sample of $_{240}Pu$ (half-life $6560\,y$) or a $4.45 – \mu Ci$ sample of $_{243}Am$ (half-life $7370\, y$)

medium

The half-life of a radioactive nuclide is $100 \,hours.$ The fraction of original activity that will remain after $150\, hours$ would be :

medium

(NEET-2021)

If the half life of a radioactive sample is $10\, hours$, its mean life is ……….$hours$

easy

Why radioactivity is considered a nuclear phenomenon ?

easy

A certain radioactive nuclide of mass number $m_x$ disintegrates, with the emission of an electron and $\gamma$ radiation only, to give second nuclied of mass number $m_y.$ Which one of the following equation correctly relates $m_x$ and $m_y$ ?

medium

Draw a graph of the time $t$ versus the number of undecay nucleus in a radioactive sample and write its characteristics.

Solution

Similar Questions

Which sample contains greater number of nuclei : a $5.00- \mu Ci$ sample of $_{240}Pu$ (half-life $6560\,y$) or a $4.45 – \mu Ci$ sample of $_{243}Am$ (half-life $7370\, y$)

The half-life of a radioactive nuclide is $100 \,hours.$ The fraction of original activity that will remain after $150\, hours$ would be :

If the half life of a radioactive sample is $10\, hours$, its mean life is ……….$hours$

Why radioactivity is considered a nuclear phenomenon ?

A certain radioactive nuclide of mass number $m_x$ disintegrates, with the emission of an electron and $\gamma$ radiation only, to give second nuclied of mass number $m_y.$ Which one of the following equation correctly relates $m_x$ and $m_y$ ?

Start a Free Trial Now