If the mass defect of ${ }_{5}B^{11}$ is $0.081 \ u$,its average binding energy (in $MeV$) is

Which one of the following statements is correct?

If two light nuclei are fused together in a nuclear fusion reaction,what happens to the average binding energy per nucleon?

$A$ nuclear reaction must be balanced in terms of

By which law is the energy produced in a nuclear reaction given?

When nuclear energy is intended to be harnessed for the generation of electricity,the potentially destructive neutrons released in a nuclear reactor are absorbed by: