1.

(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 = 3×108 m/s)

Answer» (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 = 3×108 m/s)


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