de Broglie’s Matter Waves (HSC SSCE Physics): Flashcards

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de Broglie's Matter Waves
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Wave-particle duality

Matter exhibits both wave and particle properties

de Broglie wavelength equation

λ=hmv\lambda = \frac{h}{mv}

Planck's constant value

6.626×10346.626 \times 10^{-34} J·s

Matter waves

Wavelength associated with a moving particle

Davisson-Germer experiment (1927) result

Confirmed electrons exhibit wave properties via interference

de Broglie wavelength vs mass and velocity

Inversely proportional to both mass and velocity

Diffraction

Bending of waves around obstacles or through openings

Electrons in atoms as standing waves

Complete integer number of wavelengths around nucleus

Single electron interference finding

Each electron interferes with itself through both slits

Electron microscope advantage

Electron wavelengths shorter than light, higher resolution

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