What is the range of frequencis of  a particular colour say red?
93949
Frequency 480 - 405 thz (terahertz)
130727
RED (Even if it can reflect all the colors, you are not sending them to the object)
992392
There IS no guarantee. In fact, it has been proven that people DON'T all see color exactly the same way. But it doesn't really matter, because there's no way to communicate how I see red to someone else, even if they see my perception of red as yellow.
572734
Frequency is measured in Hertz, or inverse seconds.  So take the inverse of 6, which would be 1/6, which is your frequency.  Tada!
20065
it has a wavelength of about 650 nm. divide the speed of light to the wavelength and obtain the frequency.
726221
There are many different "colors" of noise - the color assignment is sort of in analogy to colors of visible light, but not very rigorously. White noise has all different frequencies in it with equal probability, just like white light has all different frequencies of light in it. Pink noise has intensity of frequencies (f) in proportion to 1/f , not a very good analogy to visible light.  Broadband noise has a broad band of frequencies in it, where as narrow-band noise would have a narrow band of frequencies in the noise.
1056718
human beings are able to perceive sounds between 20 and 20000 hertz.the sounds having frequencies above the 20 kilo hertz mark are termed as ultra sonic sounds. And for futher information the sounds having frequencies below 20 hertz are termed as infrasonics. though all this may vary from animals to humans and in humans too because of the different biological formations. BY THIS VARIATION I MEAN THE VALUE OF THE PERCEIVENCE OF SOUNDS FREQUENCY MAY VARY.
484806
infa-red is before the red part of the spectrum meaning you can't see it and you can only feel it if it is of the right set of frequencies.
953272
f * w = c\n\nFrequency in Hertz times wavelength in meters equals the speed of light.\n\nTo solve for frequency.\nf = c/w\n\nTo solve for wavelength\nw = c/f
463258
SoundForge or Adobe Audtion software will let you copy frequencies to the clipboard so you can use it with a histogram (music related)
804004
Perhaps it is because red light has the least energy of all the colors of the visible spectrum.  It has the longest wavelength, thus the slowest frequency, slower than that of blue or violet, for example.  I don't know for sure if this is the reason the materials are not sensitive to it, though.
415100
Red is an attention getting,activity producing color
521771
Red.  It is of relatively low frequency in relation to other discernible colors, and has a wavelenght between 630 and 760 nm.  That is the only way you can expalain a color to a blind person if they were blind from birth.
400150
The range of frequencies that humans can hear is approximately between 20 Hz and 20,000 Hz.
465629
All light has a velocity of "c."  c is ~ 3*10^8m/s.  With this knowledge you can say that frequency is the inverse of time/distance.  Thus, you can use the formula C(meters/sec) / Freq.(cycles/sec) = Wavelength(meter/cycle) to solve the question.\n\nDo your own work from there.
150847
it changes from red to blue in the range of 11-12.5.  at pH 11.9 should be near violet.
219596
visible light has wavelengths from 400 to 700 nm. Frequency is inversely proportional to wavelength. The longer the wavelength (lower frequency), up to 700nm, the closer the color will be to red. As wavelength decreases, the color will shift through orange, yellow, green, blue, to violet at 400 nm. See; the color spectrum (more info in linked wikipedia article)