How to Calculate De Broglie
What is De Broglie?
De Broglie wavelength describes the wave-like properties of matter. Every particle has an associated wavelength related to its momentum.
Formula
The calculator applies λ = h / p where h is Planck\'s constant
Step-by-Step Guide
- 1Enter particle mass and velocity, or momentum directly
- 2The calculator applies λ = h / p where h is Planck's constant
- 3Results show the equivalent wavelength
Worked Examples
Input
m = 9.109 × 10⁻³¹ kg (electron), v = 0.1c
Result
λ ≈ 2.43 × 10⁻¹² m
Electron wavelength at relativistic speed
Common Mistakes to Avoid
- ✕Forgetting to convert velocity to momentum properly
- ✕Using wavelength formula without proper unit conversion
Frequently Asked Questions
Why don't we observe wave properties of macroscopic objects?
Wavelength is inversely proportional to momentum; massive objects have extremely small wavelengths, undetectable.
How does de Broglie wavelength relate to uncertainty?
It's connected to Heisenberg uncertainty principle; shorter wavelengths allow more precise position measurement.
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