Oblicz pracę wyjscia z metalu w ktorym największa długość promieniowania wynosi 2,8 x 10 do -7m
λ = 2,8 x 10⁻⁷m
h = 6,63 x 10⁻³⁴Js
c = 3 x 10⁸ms/
E = W = hv/λ
E = 6,63 x 10⁻³⁴Js x 3 x 10⁸m/s / 2,8 x 10⁻⁷m = 7,1 x 10⁻¹⁹J ≈ 4,44eV
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λ = 2,8 x 10⁻⁷m
h = 6,63 x 10⁻³⁴Js
c = 3 x 10⁸ms/
E = W = hv/λ
E = 6,63 x 10⁻³⁴Js x 3 x 10⁸m/s / 2,8 x 10⁻⁷m = 7,1 x 10⁻¹⁹J ≈ 4,44eV
----------------------------------------------------------------------------------------------------
Litterarum radices amarae sunt, fructus iucundiores
Pozdrawiam :)