Light shines on a metal whichh has a work function of 2.0eV and electrons are emitted with velocities up to a maximum of 6.0 x 10^6 m/s. Compute the a) frequency of light and b) minimum frequency of light needed to produce any photoelectrons.
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.
Light shines on a metal whichh has a work function of 2.0eV and electrons are emitted with velocities up to a maximum of 6.0 x 10^6 m/s. Compute the
a)
b) minimum frequency of light needed to produce any photoelectrons.
Let the work function of the metal be W, the maximum velocity of the electrons be vmax, and the mass of the electron be me.
a)
According’s to Einstein’s equation of the photo electric effect, the frequency ν of the light incident on the metal is calculated in the following way.
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