// multi-utility computation suite · offline · instant · precise
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sci.de-broglie-wavelength Calculator
Calculates the de Broglie wavelength of a particle: λ = h/p = h/(mv), showing wave-particle duality for matter. An electron accelerated through 1 V has λ = 1.23 nm — comparable to atomic spacings, explaining electron diffraction and why electron microscopes resolve atomic features.
Inputs
Mass Kg
Total mass (kg). Distinct from weight — weight = mass × gravity. Mass is constant; weight varies with location.
Velocity Ms
Speed in a specified direction (m/s). Required for momentum, kinetic energy, and wave calculations.
Kinetic Energy Ev
Capacity to do work (J or kWh). Conserved — converts between forms but total stays constant in a closed system.
Results
de Broglie wavelength (m)
The computed linear length.
wavelength (pm)
The computed linear length.
wavelength (Å)
The computed linear length.
momentum (kg·m/s)
Product of mass and velocity (kg·m/s). Conserved in all collisions — total momentum before equals total after. More mass or more speed makes stopping harder.
λ = h/p = h/mv
Reference formula or conversion factor shown for context.