In a photoelectric effect experiment, it is seen that when light of wavelength is incident on a metal, the measured photoelectric current drops to zero at a potential
. Calculate the work function of the metal and its cut-off frequency for photoelectric effect.
The energy of incident photons is given by [ E = \frac{hc}{\lambda} ] Here, (h = 6.626 \times 10^{-34},\mathrm{Js}), (c = 3.00 \times 10^8,\mathrm{m/s}), and (\lambda = 180,\mathrm{nm} = 180 __________ ________ _________ _____ __________ ___ ______ ________ _________ ___ _________ ______.
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ii) कण के और
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. Calculate the work function of the metal and its cut-off frequency for photoelectric effect.
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