Dual Nature of Matter and Radiation Part 1

Section: Physics

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Question : 64 of 100

Marks: +1, -0

A metal plate of area 1 ×

10^{-4} \, \mathrm{m}^2

is illuminated by a radiation of intensity 16 mW/

\mathrm{m}^2

.The work function of the metal is 5eV. The energy of the incident photons is 10 eV and only 10% of it produces photo electrons. The number of emitted photo electronsper second and their maximum energy, respectively, will be : [1 eV = 1.6 ×

10^{-19}

[10 Jan 2019 Shift 2]

$10^{10}$ and 5 eV
$10^{14}$ and 10 eV
$10^{12}$ and 5 eV
$10^{11}$ and 5 eV

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