Embibe Experts Solutions for Chapter: Nuclei, Exercise 1: Uttarakhand Board-2018

How many energy will be released in joule due to mass defect of $1$gram?

What is meant by half-life of a radioactive material? Half-life of a radioactive material is $60$ year. After how much time it becomes $\raisebox{1ex}{$1$}\!\left/ \!\raisebox{-1ex}{$16$}\right.$ of its initial value?

$\mathrm{\beta }-$rays are-

A radioactive material reduces to $\frac{1}{16}\mathrm{th}$ of its initial value in $500$ years. Find the half life of radioactive material.

Write Einstein's mass-energy relation.

Write down one feature of nuclei force.

If $2\mathrm{\alpha }$ particles and $3\mathrm{\beta }$ particles emit in series decay of a radioactive nucleus ${{}_{88}\mathrm{Ra}}^{228}$ and nucleus $\mathrm{Y}$ is obtained at last then find atomic number and mass number of $\mathrm{Y}$.