If $_{92}{U^{238}}$ undergoes successively $8 \alpha$- decays and $6 \beta$- decays, then resulting nucleus is
$_{82}{U^{206}}$
$_{82}P{b^{206}}$
$_{82}{U^{210}}$
$_{82}{U^{214}}$
Neutrino is a particle which
In which of the following decay, the element does not change
In a reactor, $2\, kg$ of ${ }_{92} U ^{235}$ fuel is fully used up in $30$ days. The energy released per fission is $200\, MeV.$ Given that the Avogadro number, $N =6.023 \times 10^{26}$ per kilo mole and $1\, eV =1.6 \times 10^{-19}\, J .$ The power output of the eactor is close to$.....MW$
In gamma ray emission from a nucleus
Consider the following two statements
$A.$ Energy spectrum of $\alpha-$ particles emitted in radioactive decay is discrete
$B.$ Energy spectrum of $ \beta -$ particles emitted in radioactive decay is continuous