Calculate the maximum kinetic energy of photoelectrons emitted from this plate when light of wavelength (λ) 520nm is directed at the metal surface.
Work function (Ф) of the plate = 1.1 * 10⁻¹⁹ J
Planck's constant (h) = 6.63 * 10⁻³⁴ Js
Frequency (f) = c : λ
c = speed light in vacuum = 3.00 * 10⁸ms⁻¹
Ekmax = hf - Φ
Wavelength must be in metres, so it'll be 590*10⁻⁹
I've worked this out and gotten two different answers so I thought I'd check to see which one is right.
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Home » Physics » Calculate the maximum kinetic energy of photoelectrons emitted from this plate when light of wavelength (λ) 520nm is directed at the metal surface. Work function (Ф) of the plate = 1.1 * 10⁻¹⁹ J Planck's constant (h) = 6.