The current increases with intensity but reaches a saturation level for large values of AV. Current At voltages equal to or more negative than -AV,, the High intensity current is zero. Low intensity Applied voltage Figure 39.10 Photoelectric cur- rent versus applied potential dif- ference for two light intensities. -AV, *Photoelectrons are not different from other electrons. They are given this name solely because of their ejection from a metal by light in the photoelectric effect.

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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.