Physics

Bragg's Law Calculator

Find the diffraction angle for X-rays in a crystal.

Parameters Live Compute
Calculated Output
Diffraction angle θ (°) 15.846
Formula: n·λ = 2d·sinθ
Step-by-Step Breakdown
1. Values used:
2. Order n = 1
3. Wavelength = 0.154 nm
4. Lattice spacing = 0.282 nm
5.
6. Diffraction angle θ = 15.846°
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Bragg's law explains how crystals diffract X-rays, the basis of crystallography.

The math behind it

n·λ = 2d·sinθ. Constructive interference occurs at specific angles set by the lattice spacing d.

Worked Example

λ = 0.154 nm, d = 0.282 nm, n = 1 → θ ≈ 15.86°.

Frequently Asked Questions

What if sinθ > 1?

No diffraction of that order is possible for those values.

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