Question

What is photoelectric effect? Explain the effect of increase (i) frequency (ii) intensity of incident radiation on photoelectric current with suitable graphs.

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Updated on : 2022-09-05
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Photoelectric effect is a phenomenon which is based on the idea that electromagnetic radiation is made of a series of particles called photons.When a photon hits an electron  on a metal surface,the electron can be emitted.The emitted electrons are called photoelectrons.
(i)On increasing the frequency the saturation currents remains the same as seen in the first figure.
(ii)On increasing the Intensity the saturation current also increases.

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Solve any question of Dual Nature of Radiation And Matter with:-
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