Nuclei — NEET/JEE Questions, Notes & Weightage
Class 12 Modern Physics NEET weightage: Medium 161 questions
Covers nuclear structure, mass defect and binding energy, radioactivity (decay laws, half-life), and nuclear reactions (fission/fusion). Half-life and binding-energy numericals are tested almost every year.
Practice all 161 Nuclei questions →Topics inside Nuclei
Atoms And Nuclei
143
Nuclear Energy
16
nuclear-physics
11
Radioactivity
8
Mass–Energy and Binding Energy
5
Radioactivity
3
Nuclear Force
3
half-life-and-mean-life-calculations-old-ncert
3
Nuclear Composition and Size
3
mass-energy-and-binding-energy
3
Mass-Energy and Nuclear Binding Energy
2
nuclear-composition-and-size
2
Nuclear Energy
2
beta-decay-old-ncert
2
old-ncert-archive
1
Archived Concepts (old NCERT)
1
Frequently asked questions
What is the most common numerical type?
Radioactive decay numericals — finding remaining quantity, decay constant, or half-life using the exponential decay law — are the chapter's most frequently repeated question format.
Is binding energy per nucleon tested conceptually?
Yes — understanding why the binding-energy-per-nucleon curve explains both fission (heavy nuclei) and fusion (light nuclei) releasing energy is a recurring conceptual question.