This book (Practical Electron Microscopy and Database) is a reference for TEM and SEM students, operators, engineers, technicians, managers, and researchers.
 

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Based on the de Broglie's idea of wave-particle duality, a particle's momentum p is determined by its wavelength λ,

        p = h/λ --------------------- [2674]

where,
          h -- The Planck’s constant,
          λ -- The wavelength.