TABLE 39.1 Work Functions of Selected Metals + (eV) Metal Na 2.46 Al 4.08 Fe 4.50 Cu 4.70 Zn 4.31 4.73 Ag Pt 6.35 4.14 Pb Note: Values are typical for metals listed. Actual values may vary depending on whether the metal is a single crystal or polycrystalline. Values may also depend on the face from which electrons are ejected from crystalline metals. Furthermore, different experimental procedures may produce differing values.
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 sodium surface is illuminated with light having a wavelength of 300 nm. As indicated as shown, the work function for sodium metal is 2.46 eV.
(A) Find the maximum kinetic energy of the ejected photoelectrons.
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