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Short Questions
Complete set of short questions with exact exam-ready answers. Covers atomic structure, isotopes, radioactivity, alpha/beta/gamma radiation, nuclear reactions, half-life, and carbon dating.
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Exercise Short Questions
Exercise-specific short questions with precise answers. Includes atomic nucleus characteristics, Rutherford's model, alpha vs beta radiation, nuclear fusion example, and Americium-241 decay.
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Long Questions
In-depth long questions with detailed explanations. Radioactive decay process, alpha/beta/gamma radiation, Einstein's equation, mass defect, isotopes properties, carbon dating, and nuclear fission vs fusion.
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Numerical Problems
Step-by-step solutions for half-life, decay calculations, mass-energy equivalence, and nuclear reaction energy. Complete with data, formulas, and answers for exam practice.
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Constructed Response
Exam-focused constructed response questions with reasoning. Atom empty space, estimating half-life, gamma ray danger, carbon dating future, fission vs fusion differences.
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Multiple Choice Questions
Comprehensive MCQs covering Rutherford's experiment, atomic number, alpha/beta/gamma radiation, radioactive decay, nuclear fission, Einstein's equation, and applications of nuclear radiation with explanations.
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⚛️ Key Formulas – Atomic & Nuclear Physics
\[ n = \frac{t}{T_{1/2}} \]
Number of Half-lives
Number of Half-lives
\[ N = \frac{1}{2^n} N_o \]
Remaining Quantity
Remaining Quantity
\[ E = mc^2 \]
Mass-Energy Equivalence
Mass-Energy Equivalence
\[ 1u = 931.5 \, \text{MeV} \]
Atomic Mass Unit Energy
Atomic Mass Unit Energy
\[ N = A - Z \]
Number of Neutrons
Number of Neutrons
\[ \text{Activity} = \text{Bq} \]
Becquerel (Unit)
Becquerel (Unit)
Unit 10Thermal Physics
Unit 11Transfer of Thermal Energy
Unit 12Waves
Unit 13Sound
Unit 14Light
Unit 15Electrostatics
Unit 16Electricity
Unit 17Electromagnetism
Unit 18Electromagnetic Induction & EM Waves
Unit 19Electronics
Unit 20✨ Atomic and Nuclear Physics
Unit 21Space and Environment
📖 Complete syllabus coverage for Class 10 Physics (PECTAA 2026) – Units 10 to 21
Created by Hira Science Academy | Aligned with PECTAA 2026 Syllabus