(a) Differentiate between nuclear fission and nuclear fusion.
(b) Which of the two, nuclear fission and nuclear fusion, is made use of :
(i) for the production of electricity ?
(ii) for making a hydrogen bomb ?
(c ) Which produces more energy : nuclear fusion or nuclear fission ?
(d) Calculate the energy released in joules when 5 g of a material is completely converted into energy during a nuclear reaction.
(e) How much is this energy in MeV ? (Speed of light = `3 xx 10^(8) m//s`)

Answer

(b) (i) Nuclear fission (ii) Nuclear fusion (c ) Nuclear fusion (d) `4.5 xx 10^(14) J` (e) `2.8 xx 10^(27) MeV`