Volume 4: Modern Physics & Quantum Mechanics

Welcome to Volume 4: Modern Physics & Quantum Mechanics. This volume bridges classical physics and quantum reality, covering matter waves, atomic transitions, nuclear forces, and relativistic spacetime.

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Chapters in this Volume

1. 1. Photoelectric Effect & Matter Waves
   Einstein's photoelectric equation, stopping potential $V_0(\nu )$ vs frequency, threshold work function $\mathrm{\Phi }$, de Broglie wavelength.

2. 2. Atomic Structure & Spectral Series
   Bohr's quantization postulate, orbital scaling ($r_n,v_n,E_n$), Rydberg formula for Lyman/Balmer/Paschen hydrogen series.

3. 3. Nuclear Physics & Radioactive Decay
   Mass defect & binding energy per nucleon ($BE/A$), Rutherford nuclear size, exponential radioactive decay kinetics ($N(t)=N_0{e}^{-\lambda t}$).

4. 4. Special Relativity Fundamentals
   Postulates of Special Relativity, Lorentz factor $\gamma$, time dilation, length contraction, relativistic velocity addition, $E^2=p^2{c}^2+m_0^2{c}^4$.

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Start Reading

Begin with Chapter 1: Photoelectric Effect & Matter Waves or explore the Multi-Mode Diagram Showcase.