Ultraviolet light is incident upon a metal, ejecting photoelectrons. The wavelength of the light is 185 nm and the maximum kinetic energy of the ejected electrons is 4.25 eV. a. What is the binding energy in eV of this metal? b. If visible light with a wavelength of 550 nm is incident upon the same metal, will photoelectrons be ejected? Briefly explain why or why not?
Compton effect
The incoming photons' energy must be in the range of an X-ray frequency to generate the Compton effect. The electron does not lose enough energy that reduces the wavelength of scattered photons towards the visible spectrum. As a result, with visible lights, the Compton effect is missing.
Recoil Velocity
The amount of backward thrust or force experienced by a person when he/she shoots a gun in the forward direction is called recoil velocity. This phenomenon always follows the law of conservation of linear momentum.
Ultraviolet light is incident upon a metal, ejecting photoelectrons. The
a. What is the binding energy in eV of this metal?
b. If visible light with a wavelength of 550 nm is incident upon the same metal, will photoelectrons be ejected? Briefly explain why or why not?
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