Class 12 Physics simulations · Dual Nature of Radiation and Matter

Compton scattering

Scatter an X-ray photon from a free electron and follow the sharing of energy and momentum.

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What to notice

The scattered photon has a longer wavelength. The electron carries the lost photon energy as recoil kinetic energy.

Key relation

Δλ = (h/mec)(1 − cos θ)

Try this

Compare forward scattering with 180° back-scattering.

What you can change

• Incident wavelength: 5 to 40 pm
• Photon scattering angle: 0 to 180 °

More in Dual Nature of Radiation and Matter

• Matter-wave wavelength
• Electron diffraction from a crystal
• Photocell current vs anode voltage
• Photoelectric effect
• Stopping potential vs frequency

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