The photon energy is 2 times higher than the work function of electrons from the metal. How many times it is necessary
| November 24, 2020 | education
The photon energy is 2 times higher than the work function of electrons from the metal. How many times it is necessary to increase the frequency of light in order for the speed of photoelectrons to double.
hv = Av + mv ^ 2/2 – Einstein equation
since the energy of the photon is twice the work function, which means that the work function is equal to the kinetic energy (mv ^ 2/2), which means that only this part will change, since in the formula the speed squared and needs to be doubled, which means we the frequency needs to be increased by four.
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