# Width of De Broglie Packet Calculator

The Width of De Broglie Packet Calculator will calculate the:

1. Width of De Broglie packet when particle's mass and speed in two different instants are given

Calculation Parameters: Medium of propagation is assumed as vacuum

 🖹 Normal View🗖 Full Page View Calculator Precision (Decimal Places)51020304050 Mass of particle (m) kg Initial speed of particle (v0) m/s Final speed of particle (v) m/s Planck's constant (h) J · s × 10 power of Archimedes' Constant (π) ∞ Real Number Results∑ Scientific Number Results
Width of wave packet (Δk) calculation Width of wave packet (Δk) ∆k = 2π ∙ m · (v - v0)/h∆k = (2 × ) ∙ · ( - )/∆k = ∙ · /∆k = /∆k = Mass of particle (m) kg [kilogram] Initial speed of particle (v0) m/s [metre per second] Final speed of particle (v) m/s [metre per second] Planck's constant (h) J · s [Joule per second] Archimedes' Constant (π) ## Related Physics Sections with Tutorials

Section 1: Units and Measurements

Section 11: Waves

Section 19: Modern Physics

## Width of wave packet (Δk) Formula and Calculation

∆k = 2π ∙ m · (v - v0)/h

This formula derives from

∆k = 2π ∙ ∆p/h

where Δp = m · Δv = m · (v - v0) is the change in particle's momentum.

## Modern Physics Physics Tutorials associated with the De Broglie Packet Calculator

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