Red at the low frequency end and violet at the high frequency end.
Red & violet.
The longest wavelength that's visible to your individual eyes is that of the last color you can see on the red end of the spectrum. The shortest wavelength that's visible to your individual eyes is that of the last color you can see on the blue end of the spectrum. Between those lie every color you can name, every color you have ever seen, every color that any paint manufacturer can mix, and every color that any fabric designer can dye or weave. There are an infinite number of them, it's not possible to list them, and the vast majority of them don't even have names.
The visible light with the shortest wavelength (highest frequency) is the last color you can see on the blue end of the visible spectrum. The visible light with the longest wavelength (lowest frequency) is the last color you can see on the red end of the visible spectrum. In between those limits lie every color perceptible to the human eye ... every shade of paint that has ever been mixed, and every hue of fabric ever dyed. The ones that have names and the millions of others that haven't been named. Some are so close together that average, untrained human eyesight can't tell them apart, but they're different colors nonetheless because their wavelengths are slightly different. The visible spectrum is "continuous", with no 'segments'. Obviously, no complete list is possible. "Red, orange, yellow, green, blue, indigo, violet" worked fine in the 4th Grade, but it doesn't begin to scratch the surface.
By observing far away stars in our galaxy through a spectroscope, we are able to see the spectrum that appears from the substances in these stars. Each element has a unique spectrum when light is shone through it, so we are able to determine what elements make up certain stars.
Thallium got its name from the Greek word for a shoot or twig, thalllos.
Red & violet.
Red & violet.
The emission of sodium lies in the yellow region
The waves used to broadcast radio signals are called RF waves and these generally lie in VHF and UHF band of electromagnetic spectrum.
In the middle
The longest wavelength that's visible to your individual eyes is that of the last color you can see on the red end of the spectrum. The shortest wavelength that's visible to your individual eyes is that of the last color you can see on the blue end of the spectrum. Between those lie every color you can name, every color you have ever seen, every color that any paint manufacturer can mix, and every color that any fabric designer can dye or weave. There are an infinite number of them, it's not possible to list them, and the vast majority of them don't even have names.
In the ultra-violet
You can lie to the ends of the Earth to either protect or betray your lover.
The visible light with the shortest wavelength (highest frequency) is the last color you can see on the blue end of the visible spectrum. The visible light with the longest wavelength (lowest frequency) is the last color you can see on the red end of the visible spectrum. In between those limits lie every color perceptible to the human eye ... every shade of paint that has ever been mixed, and every hue of fabric ever dyed. The ones that have names and the millions of others that haven't been named. Some are so close together that average, untrained human eyesight can't tell them apart, but they're different colors nonetheless because their wavelengths are slightly different. The visible spectrum is "continuous", with no 'segments'. Obviously, no complete list is possible. "Red, orange, yellow, green, blue, indigo, violet" worked fine in the 4th Grade, but it doesn't begin to scratch the surface.
The question is a lot like asking "What is the frequency of hearing ?", or "How fast is speed ?", or "How much does money cost ?". "Night vision" is the sensitivity of the human eye to extremely low light conditions, or the use of optical and electronic devices to render an invisible scene in visible wavelengths. It's not a type of radiation that can be located on the electromagnetic spectrum.
what poem/poetry ends with "lie down ,lie down I'll see you in the morning"
It is not legal or ethical to lie about chlamydia, but, since someone can be infected without knowing and without having visible signs, it is possible to lie and say that you don't have chlamydia.