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प्रश्न
The electrons are emitted in the photoelectric effect from a metal surface.
पर्याय
only if the frequency of radiation is above a certain threshold value.
only if the temperature of the surface is high.
at the that is independent of the nature of metal.
with a maximum velocity proportional to the frequency of incident radiation
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उत्तर
The electrons are emitted in the photoelectric effect from a metal surface only if the frequency of radiation is above a certain threshold value.
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संबंधित प्रश्न
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Explain the inverse linear dependence of stopping potential on the incident wavelength in a photoelectric effect experiment.
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As the intensity of incident light increases ______
The minimum frequency for photoelectric effect on metal is 7 × 1014 Hz, Find the work function of the metal.
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The following graphs show the variation of stopping potential corresponding to the frequency of incident radiation (ν) for a given metal. The correct variation is shown in graph [ν0 = threshold frequency].
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(C) |
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Photoelectric emission is observed from a metallic surface for frequencies ν1 and ν2 of the incident light rays (ν1 > ν2). If the ratio of the maximum value of the kinetic energy of the photoelectrons emitted in the first case to that in the second case is 2 : K, then the threshold frequency of the metallic surface is ______.
Define photoelectric work function of a metal.
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