- #1
ImranParukZA
- 2
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Hello All, I have a problem that has been troubling me and I have been unable to find an answer on Google. It is said that 1 photon = 1 photoelectron ejected, Therefore the photoelectric current produced is directly proportional to the intensity of light used. It is also said that the frequency of the photons does not effect the photoelectric current produced. I disagree with this. If one source of light is used and an experiment of two different frequencies is done with a constant intensity of light (Frequencies above threshold frequencies of the metal), the second frequency is twice as high as the first. The kinetic energy of the photoelectrons produced by the higher frequency light used will be greater than the first, therefore in a vacuum it will travel from the cathode to the anode in a shorter time and since the photoelectric current is the amount of charge passing a point in a particular time, the amount of charge is constant due to the constant intensity while the time is shorter therefore a greater current is produced.
My teacher tells me I am incorrect by stating this and I am sure she is correct but she has no evidence to tell me why. Could someone please tell me where I am wrong.
Thanks.
My teacher tells me I am incorrect by stating this and I am sure she is correct but she has no evidence to tell me why. Could someone please tell me where I am wrong.
Thanks.