11.When mass equal to 1 amu. Disappears, the energy produced is equal to nearly

12.A radioactive nuclide emits particles alpha, beta, gamma in successive disintegration. The atomic mass of the end product is less than the atomic mass of the original nuclide by approximately

13.Which of the following is used as neutron absorber in the nuclear reactor?

14.Large energy released in an atomic bomb explosion is mainly due to

15.A stable nuclide has, in general,