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Photoelectric effect supports quantum na...

Photoelectric effect supports quantum nature of light because
(a) there is a minimum frequency of light below which no photoelectrons are emitted
(b) the maximum kinetic energy of photoelectrons depends only on the frequency of light and not onits intensity
(c ) even when the metal surface is faintly illuminated, the photoelectrons leave the surface immediately
(d) electric charge of the photoelectrons is quantised

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