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The photoelectric
effect
The
maximum kinetic energy of electrons ejected from a metal surface by
monochromatic light is measured for several wavelengths. You will demonstrate that light is composed of photons
and will
determine the work function of the metal. In addtion you will obtain
the
value of Planck's constant, h, by an analysis of the data in
light of
Einstein theory of the photoelectric effect.
- A very accessible
introduction to this material is in the
American Institute of Physics A Look Inside the Atom.
- 1918 Nobel Prize
to Max Planck for his discovery of the energy quanta
- 1921 Nobel Prize
to Albert Einstein for his discovery of the law of the photoelectric
effect.
- [1916] R.A. Millikan, A
Direct Photoelectric Determination of Planck's `h'. Phys. Rev., 7,
355 (1916)
- Harnwell and Livingood, Experimental Atomic Physics, McGraw-Hill
(1933) Notes on the photoelectric effect
- [1966] A. Melissinos, Photoelectric Effect Notes, Experimental
Physics (1966)
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