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13. Nuclei — Physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 SciencePhysics13. Nuclei1 Mark
MCQ
Energy is released in nuclear fission is due to
  • A
    total binding energy of fragments is more than the binding energy of parental element
  • ✓
    Few mass is converted into energy
  • C
    total binding energy of fragments is less than the binding energy of parental element
  • D
    total binding energy of fragments is equal to the binding energy of parental element.
✓

Answer

Correct option: B.
Few mass is converted into energy
b
In a nuclear process energy is released if binding energy per nucleon of the daughter products gets increased. In nuclear fission process, total binding energy of products formed due to nuclear fission is more than the parent fissionable material. Thus, energy is released.

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