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GyanMul Prep · NEB +2 · Science · Grade 12

Physics (Science, Grade 12)

Everything on these tabs is Physics (Science, Grade 12) only, within NEB +2 Science · Grade 12.

Science · Grade 12 subjects

GyanMul Prep · NEB +2 · Science · Grade 12

Physics (Science, Grade 12)

Everything on these tabs is Physics (Science, Grade 12) only, within NEB +2 Science · Grade 12.

Science · Grade 12 subjects

Chapter 24 of 25 · Physics (Science, Grade 12)

Radioactivity and Nuclear Reaction

8 topics
Board exam — Modern Physics, 19 marks across 6 chapters
22 solved questions

The unstable nucleus: three radiations and what each is, the exponential decay law with its constant and half life, and the mass that becomes energy in fission and fusion.

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Topics

What the syllabus defines for this chapter

1Alpha, beta and gamma radiations and their properties
2Laws of radioactive disintegration; decay constant
3Half life and mean life
4The decay equation N = N₀e^(−λt)
5Radioactive dating and carbon dating
6Mass defect and binding energy per nucleon
7Nuclear fission and nuclear fusion
8Nuclear reactor and radiation hazards