Visible Light: Beyond 400-800nm?

AI Thread Summary
The visible light spectrum is often cited as ranging from 400 to 800 nm, but this definition is not strict and varies across sources. Some discussions suggest a short-wave limit of 430 nm and a long-wave limit of 690 nm, while others propose a broader range of 350 to 750 nm. The discrepancies arise from differing interpretations and definitions in various texts and resources. A simple Google search for "wavelength of light" reveals a variety of ranges, highlighting the lack of consensus. Ultimately, the boundaries of visible light are flexible and can differ based on context and source.
Petar Mali
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In spectrum of EM radiation domain of visible light isn't strictly limited. In books is usually given from 400-800nm. But for visible domain short-wave limit is \lambda=430nm, and long-wave limit is \lambda=690nm? Why we say then that the boundaries are 400-800nm?
 
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Yes it differs from book to book...the boundaries are not very strict..i say the visible range is from 350 nm to 750 nm.
 
If you google "wavelength of light" you will get a slew of results and they will all be slightly different. Lower limit 350 - 400, upper limit 690 - 750.
 
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