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A metal surface is exposed to 500 nm radiation. The threshold frequency of the metal for photoelectric current is 4.3 xx 10^(14) Hz. The velocity of ejected electron is xx 10^5 ms^(-1). (Nearest integer)
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SOLVED:Multiple-Concept Example 3 reviews the concepts necessary to solve this problem. Radiation with a wavelength of 238 nm shines on a metal surface and ejects electrons that have a maximum speed of
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Electrons are emitted with zero velocity from a metal surface when it is exposed to radiation of wavelength 6800 ∘A . Calculate threshold frequency v0 and work function w0 of the metal.
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If the speed of photoelectrons is 10^(6) ms^(-1), what should be the frequency of the incident radiation on the potassium metal ? (Work function of potassium = 2.3 eV).
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If the threshold wavelength (lambda0) for the ejection of an electron from metal is 330 nm, then work function for the photoelectric emission is:
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