a) A photon of frequency 8.2 x 1015 Hz is incident upon a photoelectric apparatus containing...

a) A photon of frequency 8.2 x 10¹⁵ Hz is incident upon a photoelectric apparatus containing a metal whose threshold frequency is 3.6 x 10¹⁵ Hz. What is the stopping voltage?

b)A photon of frequency 7.2 x 10¹⁵ Hz is incident upon a metal whose threshold frequency is 8.9 x 10¹⁴ Hz. What is the speed of the photoelectron?

c)Electrons are ejected from a photoelectric surface with a maximum speed of 4.20 x 10⁵ m/s. If the work function of the metal is 2.55 eV, what is the wavelength of the incident light?

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genius_generous answered 1 year ago

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