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The Width of De Broglie Packet Calculator will calculate the:

- 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

Width of wave packet (Δk) |

Width of wave packet (Δk) calculation |
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∆k = 2π ∙ m · (v - v_{0})/h∆k = (2 × ) ∙ · ( - )/∆k = ∙ · /∆k = /∆k = |

De Broglie Packet Calculator Input Values |

Mass of particle (m) kg [kilogram] |

Initial speed of particle (v_{0}) 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) |

Section 1: Units and Measurements

∆k = *2π ∙ m · (v - v*_{0})*/**h*

This formula derives from

∆k = *2π ∙ ∆p**/**h*

where Δp = m · Δv = m · (v - v_{0}) is the change in particle's momentum.

The following Physics tutorials are provided within the Modern Physics section of our Free Physics Tutorials. Each Modern Physics tutorial includes detailed Modern Physics formula and example of how to calculate and resolve specific Modern Physics questions and problems. At the end of each Modern Physics tutorial you will find Modern Physics revision questions with a hidden answer that reveals when clicked. This allows you to learn about Modern Physics and test your knowledge of Physics by answering the test questions on Modern Physics.

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