A metal plate of area 1 $ \times $ 10–4 m2 is illuminated by a radiation of intensity 16 mW/m2. The work function of the metal is 5 eV. The energy of the incident photons is 10 eV and only 10% of it produces photo electrons. The number of emitted photoelectrons per second and their maximum energy, respectively, will be

Question

A metal plate of area 1 $ \times $ 10^–4 m² is illuminated by a radiation of intensity 16 mW/m². The work function of the metal is 5 eV. The energy of the incident photons is 10 eV and only 10% of it produces photo electrons. The number of emitted photoelectrons per second and their maximum energy, respectively, will be

10¹⁴ and 10 eV

10¹² and 5 eV

10¹¹ and 5 eV

10¹⁰ and 5 eV

Solution

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