PAP Physics Review Ch 23&25 – Atomic and Nuclear

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PAP Physics Review Ch 23&25 – Atomic and Nuclear • Wave particle duality • Energy of a photon E f – Light intensity determines number of photons per second; frequency determines energy per photon; all photons travel at the same speed • Photoelectric effect • Blackbody radiation and the ultraviolet catastrophe • Compton effect • de Broglie wavelength; =h/p=h/mv • Energy level diagrams, line-emission spectra and spectroscopy • Alpha, beta, and gamma decay – Know how each affects mass # and atomic # • Half-life • Strong nuclear force • E=mc 2 • Fission and fusion 1 E hc hf E K max =hf - =hf t = work function minimum amount of energy required to remove electron from a metal f t = threshold frequency minimum frequency that will eject electrons from a specific metal

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PAP Physics Review Ch 23&25 – Atomic and Nuclear. Wave particle duality Energy of a photon E  f Light intensity determines number of photons per second; frequency determines energy per photon; all photons travel at the same speed Photoelectric effect - PowerPoint PPT Presentation

Transcript of PAP Physics Review Ch 23&25 – Atomic and Nuclear

Page 1: PAP Physics Review Ch 23&25 – Atomic and Nuclear

PAP Physics Review Ch 23&25 – Atomic and Nuclear

• Wave particle duality• Energy of a photon E f

– Light intensity determines number of photons per second; frequency determines energy per photon; all photons travel at the same speed

• Photoelectric effect

• Blackbody radiation and the ultraviolet catastrophe• Compton effect• de Broglie wavelength; =h/p=h/mv• Energy level diagrams, line-emission spectra

and spectroscopy• Alpha, beta, and gamma decay

– Know how each affects mass # and atomic #• Half-life• Strong nuclear force• E=mc2

• Fission and fusion

1

Ehc

hfE

Kmax=hf -=hft

= work function minimum amount of energy required to remove electron from a metal

ft = threshold frequency minimum frequency that will eject electrons from a specific metal

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