A 480 nm laser beam is incident on two different metallic surfaces, one made of sodium (Na), the other of magnesium (Mg). If the respective work functions of these metals are 2.66 eV and 3.66 eV, will electrons be ejected by the 480 nm photons? If so, calculate the maximum KE the photoelectrons can have.
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.
A 480 nm laser beam is incident on two different metallic surfaces, one made of sodium (Na), the other of magnesium (Mg). If the respective work functions of these metals are 2.66 eV and 3.66 eV, will electrons be ejected by the 480 nm photons? If so, calculate the maximum KE the photoelectrons can have.
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