What are the ranges of wavelength for each type of electromagnetic radiation?
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What are the ranges of wavelength for each type of electromagnetic radiation?
Could someone please explain the ranges of wavelength for each type of electromagnetic radiation? The ranges are always so ambiguous to me and I have always had trouble identifying the type of light in the problem based on its wavelength.
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Re: What are the ranges of wavelength for each type of electromagnetic radiation?
Hi,
I don't think we need to know the exact ranges of each type of EM radiation, other than visible light which has wavelengths between 400nm to 700nm. However, I think we do have to know how the order of the EM spectrum so we can compare which type of light has a shorter wavelength/high frequency. I've attached a really helpful photo that has helped me in remember the order and the general trends of the spectrum. In general, something that helps me in figuring out which type of radiation it is is comparing the wavelength to that of visible light so I can get a better picture of where on the spectrum that wavelength fits.
I hope this helps!
I don't think we need to know the exact ranges of each type of EM radiation, other than visible light which has wavelengths between 400nm to 700nm. However, I think we do have to know how the order of the EM spectrum so we can compare which type of light has a shorter wavelength/high frequency. I've attached a really helpful photo that has helped me in remember the order and the general trends of the spectrum. In general, something that helps me in figuring out which type of radiation it is is comparing the wavelength to that of visible light so I can get a better picture of where on the spectrum that wavelength fits.
I hope this helps!
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Re: What are the ranges of wavelength for each type of electromagnetic radiation?
For tests, we don't need the exact values for each type of wave but we should know the general lengths like visible light is 10^-7 and we should know the order.
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Re: What are the ranges of wavelength for each type of electromagnetic radiation?
Yeah, I think it won't be necessary to memorize the specific values(besides maybe visible light), rather you should be able to list them in the proper order and know which wavelengths are longer or shorter. It's also good to associate examples with each type of radiation to help with placing them in order or in the context of a problem.
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Re: What are the ranges of wavelength for each type of electromagnetic radiation?
For the final I would recommend knowing the order on the spectrum and that visible is light is 400-700nm. and know that the lyman series is apart of the UV spectrum and the balmer series is apart of the visible light spectrum:)
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Re: What are the ranges of wavelength for each type of electromagnetic radiation?
Although we don't need to know the exact range for each form of electromagnetic radiation, it is important to know that visible light is about 400-700nm with violet light being in the 400 range and red light being in the 700 range. You should also know that gamma rays(less than a pm), x-rays(1+ pm), and uv(1+ nm) light is all smaller than the visible light spectrum. Finally you should be aware that infrared(about a micro meter), microwave(about a mm), and radio waves(about a cm) are all larger than the visible light spectrum.
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