What is the maximum speed of emitted photoelectrons if a beam of light of wavelength 200 nm is shone on a metal whose threshold wavelength for emission is 289 nm?
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.
What is the maximum speed of emitted photoelectrons if a beam of light of wavelength 200 nm is shone on a metal whose threshold wavelength for emission is 289 nm?
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