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The photoelectric cut of voltage in a certain experiment is 1.5 V. The ...


The photoelectric cut of voltage in a certain experiment is 1.5 V. The maximum kinetic energy of emitted photoelectrons is what? 2 Answers. Vinod Gohel, former  ...


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Problem Solutions


... sun is 0.447 V. b. At what voltage does the diode deliver maximum power to ... excess will be in the form of kinetic energy and will rapidly be thermalized, and ...


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Photoelectric threshold frequency | physics | Britannica


Other articles where Photoelectric threshold frequency is discussed: ... is that frequency at which the effect is barely possible; it is given by the ratio of the ... with the surface going up and down, and longitudinal waves are like of those ... The velocity of a wave can be expressed as the wavelength multiplied by the frequency.


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Einstein's Explanation Of Photoelectric Effect - Threshold Frequency ...


Hertz (who had proved the wave theory) himself did not pursue the matter as he ... This implies that the kinetic energy of electrons increases with light intensity. ... hv = W + KE ... It is calculated experimentally using the stopping potential. ... Thus , Einstein explained the Photoelectric effect by using the particle nature of light.


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Teja
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Given that

Photoelectric cut-off voltage V = 1.5 V

Charge of electron e = 1.6*10^{-19} C


Step 1: Set up an equation for maximum kinetic energy and find that

              By conservation of energy, kinetic energy has to be equal to the change in potential energy.

                                K.E = eV

                               K.E = 1.6*10^{-19} * 1.5

                               K.E = 2.4 * 10^{-19}

                

               Thus, the maximum kinetic energy of the photoelectron emitted K.E = 2.4 * 10^{-19}   J