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Renandornelles
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Is it possible to get the photoelectric effect in red color frequency?
What's a ddp?Renandornelles said:I wanted to do a small experiment replicating with LEDs, a solar panel, and I would like to know if a red lamp would be able to generate ddp...
The photoelectric effect has nothing to do with solar panels, IMO.Renandornelles said:I wanted to demonstrate the frequency limits capable of emitting electrons for children to understand solar panels.it would be like a little toy, for children to learn by playing.
I wanted to do a small experiment replicating with LEDs, a solar panel, and I would like to know if a red lamp would be able to generate ddp...berkeman said:Welcome to PF.
What reading have you been doing about the Photoelectric effect? How does the wavelength of the incoming EM radiation affect the emission of the electrons?
berkeman said:What's a ddp?
The photoelectric effect has nothing to do with solar panels, IMO.
Again, what reading have you been doing on your question (please post links), and what do you really want to learn/do?
berkeman said:What's a ddp?
When I do a Google seatch for “ddp photoelectric effect”, this thread is near the top of the results. The other hits don’t give anything useful, as far as I can see from an admittedly quick scan.berkeman said:What’s a ddp?
So it must be something involving recursion then...jtbell said:When I do a Google seatch for “ddp photoelectric effect”, this thread is near the top of the results
Home made or home devised demonstrations to kids (even more mature students) are often not as good as you can get with proprietary equipment (most things tend just not to work apart from in your shed or 'prep room' after school). The standard equipment for demonstrating the photoelectric effect just uses a beam of light to discharge a plate on an electroscope and the gold leaves drop down. But that's not 'mechanical' (apart from the Coulomb force); the presence or absence of charge is all a bit abstract.Renandornelles said:I wanted to demonstrate the frequency limits capable of emitting electrons for children to understand solar panels.
Yes, the photoelectric effect can occur with red light. The photoelectric effect refers to the emission of electrons from a material when it is exposed to electromagnetic radiation, regardless of the color or frequency of the radiation.
The minimum frequency of light needed to produce the photoelectric effect is known as the threshold frequency. This frequency varies depending on the material being used, but it is typically in the ultraviolet range.
Yes, the intensity of red light can affect the photoelectric effect. Increasing the intensity of light increases the number of photons hitting the material, which in turn increases the number of electrons that can be emitted.
The energy of red light does not directly affect the photoelectric effect. However, the energy of a photon is related to its frequency, so higher frequency (and therefore higher energy) red light may have a greater chance of causing the photoelectric effect.
Yes, the photoelectric effect can be observed with red light in everyday life. One common example is solar panels, which use the photoelectric effect to convert sunlight (which contains red light) into electricity.