Moderator is used in a nuclear to slow down fast neutrons generated after a fission event in the reactor consider a fast neutron (mass `m_(n)`) moving

Correct Answer - C 235 g of u-235 contains `6.023xx10^(23)` atoms 1g u-235=`(6.023xx10^(23))/(235)atoms` `therefore` Energy relaeased =`(3.2xx10^(-11)xx6.023xx10^(23))/(235)j` `=8.21xx10^(10)j` `8.21xx10^(7) kj`

Energy released in the nuclear fusion is `Q = Deltamc^(2) = Deltam(931) MeV` (where `Deltam` is in amu) `Q = (2 xx 2.0141 - 4.0026) xx 931 MeV = 23.834...

Correct Answer - A::B::D A is balanced both in mass number & atomic no.

Correct Answer - 3 since the charge in mass is only due to the emmission of `alpha`-particle, we have Number of `alpha`-particle emitted `=(234-206)/(4)=7` Now the associated decrease in atomic number...

Correct Answer - C `(c )` `P(A)=(3)/(4)`, `P(B//A)=(1)/(4)` `P(A//B)=(2)/(3)` `P(B//A)=(P(BnnA))/(P(A))=(1)/(4)` (given) `:.P(BnnA)=(3)/(4)*(1)/(4)=(3)/(16)` Now `P(A//B)=(P(AnnB))/(P(B))=(2)/(3)`(given) `:.P(B)=(3)/(2)*(3)/(16)=(9)/(32)` `:. P(AuuB)=(3)/(4)+(9)/(32)-(3)/(16)=(24+9-6)/(32)=(27)/(32)` `:. P(A^(C )nnB^(C ))=1-P(AuuB)=1-(27)/(32)=(5)/(32)`

Correct Answer - `198.77` MeV

Correct Answer - [(i) 200.68 MeV` (ii) `22.86 MWh`]

Correct Answer - `[(T)/(ln 2)ln(1+(mu N eta Eln 2)/(PT)) = 10^(8) ln (1.0576)s]`

Nuclear fusion involves the fusion of lighter nuclei to form a heavy nucleus which is accompanied by an enormous amount of energy (heat). Fusion reaction requires extremely high temperature typically of...

Correct Answer - (i) 0 (ii)1(iii)1(iv) 0,1 (v) 1