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[" Q.7When a beam of "10.6eV" photons of...

[" Q.7When a beam of "10.6eV" photons of intensity "4.0W/m^(2)" falls on a platinum surface of area "2times10^(-4)m^(2)" and "],[" work function "6cV" ,find the number of photoeloctrons emitted per second if "0.60%" of the incident photons "],[" eject photo lectrons."],[[" (A) "28times10^(11)," (B) "72times10^(14)],[" (C) "2times10^(16)," (D) "19times10^(11)]]

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