Calculate the cut-off wavelength for aluminium, which has a work function of 4.08 eV. Will photoelectrons be emitted when radiation of wavelength 400 nm is incident on an aluminium surface?
To calculate the cutoff wavelength for aluminum and determine whether photoelectrons will be emitted when radiation with a wavelength of 400 nm is incident on an aluminum surface, we can use the photoelectric effect equation and the work function of aluminum.
The photoelectric effect equation is given by:
E = hf - Φ
Where:
E is the kinetic energy of the emitted photoelectron.
h is the Planck constant (6.626 x 10^-34 J·s).
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Calculate the cut-off wavelength for aluminium, which has a work function of 4.08 eV. Will photoelectrons be emitted when radiation of wavelength 400 nm is incident on an aluminium surface?