Embibe Experts Solutions for Chapter: Nuclear Physics, Exercise 1: KCET (UG) 2021

The energy equivalent to a substance of mass $1 \mathrm{g}$ is

Two protons are kept at a separation of $10 \mathrm{nm}.$. Let $F_n$ and $F_e$ be the nuclear force and the electromagnetic force between them

Two protons are kept at separation of $10 \mathrm{nm}$. Let $F_n$ and $F_e$ be the nuclear force and the electromagnetic force between them

The half-life of tritium is $12.5$ years. What mass of tritium of initial mass $64 \mathrm{mg}$ will remain undecayed after $50$ years?

A radio-active element has a half-life of $15 \text{years}$. What fraction of this element will decay in $30$ $\text{years}$?

The end product of decay of ${}_{90}{\mathrm{Th}}^{232}$ is ${}_{82}{\mathrm{Pb}}^{208}$. The number of $\alpha$ and $\beta$ particles emitted are respectively

In a nuclear reactor heavy nuclei is not used as moderators because