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Nuclei — Physics STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 SciencePhysicsNuclei1 Mark
MCQ
Radiocarbon is produced in the atmosphere as a result of:
  • A
    Collision between fast neutrons and nitrogen nuclei present in the atmosphere.
  • B
    Action of ultraviolet light from the sun on atmospheric oxygen.
  • C
    Action of solar radiations particularly cosmic rays on carbon dioxide present in the atmosphere.
  • D
    Lightning discharge in atmosphere.
✓

Answer

  1. Collision between fast neutrons and nitrogen nuclei present in the atmosphere.

Explanation:

Radiocarbon is produced in the atmosphere as result of collision between fast neutrons and nitrogen nuclei present in the atmosphere.

Nuclear reaction is given as:

7​N14 + 0​n1 → 6​C14 + 1​H1

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