Learning objective
E.2.1 (HL)—Photoelectric effect
• Photoelectric effect is evidence for particle nature of light.
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E.2 Quantum physics
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Learning objective
E.2.2 (HL)—Threshold frequency
• Photoelectrons require photons above threshold frequency.
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Learning objective
E.2.3 (HL)—Photoelectric equation
• Photoelectric equation: Emax = hf - Φ.
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Learning objective
E.2.4 (HL)—Particle diffraction
• Particle diffraction is evidence for wave nature of matter.
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Learning objective
E.2.5 (HL)—Matter wave-particle duality
• Matter exhibits wave-particle duality.
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Learning objective
E.2.6 (HL)—de Broglie wavelength
• de Broglie wavelength: λ=h/p.
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Learning objective
E.2.7 (HL)—Compton scattering
• Compton scattering is evidence for particle nature of light.
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Learning objective
E.2.8 (HL)—Photon wavelength increase
• Scattered photons have increased wavelength.
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Learning objective
E.2.9 (HL)—Compton wavelength shift
• Compton shift: Δλ = h/(mec)(1-cosθ).
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