Skip to main content

What is the relationship between the colors red, green, and violet in terms of the frequency of light waves?

Red has a lower frequency (longer wavelength) than green, which has a lower frequency than violet.

Light we see as red has a frequency range of about 400 to 484 THz and a wavelength of about 620 to 750 nm.

For orange, the frequency range is about 484 to 508 THz and the wavelength range is about 590 to 620 nm.

For yellow, frequency is about 508 to 526 THz, wavelength is about 570 to 590 nm.

For green, frequency is about 526 to 606 THz, wavelength is about 495-570 nm.

For blue, frequency is about 606 to 668 THz, wavelength is about 450 to 495 nm.

Finally, for violet, frequency is about 668-789 THz, wavelength is about 380 to 450 nm.

All of these are approximate, and actually different people will vary as to the precise color they see for any given frequency. We are most sensitive to light in the range around green, and least sensitive around red and violet; frequencies lower than red are invisible infrared, and frequencies higher than violet are invisible (and hazardous) ultraviolet.

Comments

Post a Comment

Popular posts from this blog

Is there a word/phrase for "unperformant"?

As a software engineer, I need to sometimes describe a piece of code as something that lacks performance or was not written with performance in mind. Example: This kind of coding style leads to unmaintainable and unperformant code. Based on my Google searches, this isn't a real word. What is the correct way to describe this? EDIT My usage of "performance" here is in regard to speed and efficiency. For example, the better the performance of code the faster the application runs. My question and example target the negative definition, which is in reference to preventing inefficient coding practices. Answer This kind of coding style leads to unmaintainable and unperformant code. In my opinion, reads more easily as: This coding style leads to unmaintainable and poorly performing code. The key to well-written documentation and reports lies in ease of understanding. Adding poorly understood words such as performant decreases that ease. In addressing the use of such a poorly ...
Post a Comment
Read more

Is 'efficate' a word in English?

I routinely hear the word "efficate" being used. For example, "The most powerful way to efficate a change in the system is to participate." I do not find entries for this word in common English dictionaries, but I do not have an unabridged dictionary. I have checked the OED (I'm not sure if it is considered unabridged), and it has no entry for "efficate". It does have an entry for "efficiate", which is used in the same way. Wordnik has an entry for "efficate" with over 1800 hits, thus providing some evidence for the frequency of use. I personally like the word and find the meaning very clear and obvious when others use it. If it's not currently an "officially documented" word, perhaps its continued use will result in it being better documented.
Post a Comment
Read more