Particle Properties of Electromagnetic Waves

For any particular metal there was a critical radiation frequency Vq below which no electrons were emitted, no matter what value of the retarding potential V was used. [Pg.5]

The slope of the plot of maximum kinetic energy versus frequency was the same for all metals, with a value equal to Planck s constant [Pg.5]

Hgure 1.6 Plots of the maximum kinetic energy of photoeiec trons versus the frequency of the fight source for two different metals [Pg.5]

Fermi level, — highest occupied level in metal [Pg.6]

Q The longest wavelength of light that will induce emission of electrons from potassium is 564 nm. Calculate the work function of potassium in units of Joules and also in units of electronvolts. [Pg.6]

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