Photon energy vs electron kinetic energy for same wavelength (E_γ = hc/λ; K_e = h²/(2m_e λ²) same λ)

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E_γ = hc/λ; K_e = h²/(2m_e λ²) same λ

What each symbol means

SymbolWhat it stands for
λCommon wavelength
K_eNon-relativistic electron kinetic energy
E_γPhoton energy

When to use this

Compares dual nature formulas when photon and electron share same λ (conceptual/numerical problems). Electron non-relativistic.