During mean life of a radioactive element, th | vedclass

Name: PDF Generator App | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(b)

In mean life $t=\frac{1}{\lambda}$

Fraction that disintegrates is $\frac{N_0-N_0 e^{-\lambda 	imes \frac{1}{\lambda}}}{N_0}=\left(\frac{1-e

Vedclass · Accepted Answer

$\frac{e-1}{e}$

Vedclass · Answer

(b)

In mean life $t=\frac{1}{\lambda}$

Fraction that disintegrates is $\frac{N_0-N_0 e^{-\lambda 	imes \frac{1}{\lambda}}}{N_0}=\left(\frac{1-e}{e}ight)$ Or magnitude $\left(\frac{1-e}{e}ight)$

During mean life of a radioactive element, the fraction that disintegrates is

Similar Questions

Certain radio-active substance reduces to $25\%$ of its value in $16$ days. Its half-life is ........ $days$

A radioactive substance is being produced at a constant rate of $10\, nuclei/s.$ The decay constant of the substance is $1/2\, sec^{-1}.$ After what time the number of radioactive nuclei will become $10$ $?$ Initially there are no nuclei present. Assume decay law holds for the sample.

Three fourth of the active decays in a radioactive sample in $3/4\, sec$. The half life of the sample is

Activity of a radioactive substance can be represented by various unit. Select correct option

A radioactive material decays by simultaneous emission of two particles with respective half lives $1620$ and $810$ years. The time (in years) after which one- fourth of the material remains is