Ultraviolet light of wavelength 350 nmand int...
Ultraviolet light of wavelength 350 nm and intensity 1.00 W/m2 is directed at a metal surface of work function 2.2 eV. If 0.50% of the incident photons produce photoelectrons, the number of photo electrons emitted per second, if the metal surface lias an area of 1.00 cm2, is equal to ____ x 1011 photoelectrons/s. (upto one decimal place) (h = 6.626 x 10-34 J s, c = 3 x 108 m/s, 1 eV = 1.6 x 10-19 J)

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 SEEMA GUPTA May 11, 2020
Related Ultraviolet light of wavelength 350 nmand intensity 1.00 W/m2is directed at a metal surface of work function 2.2 eV. If 0.50% of the incident photons produce photoelectrons, the number of photo electrons emitted per second, if the metal surface lias an area of 1.00 cm2, is equal to ____ x 1011 photoelectrons/s. (upto one decimal place) (h = 6.626 x 10-34 J s, c = 3 x 108 m/s,1 eV = 1.6 x 10-19 J)Correct answer is between '8.7,8.9'. Can you explain this answer?
Energy of a photons is

Number of photons passing through unit surface per second is

The rate at which photoelectrons are emitted

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