Red is at the low frequency end of the visible spectrum.
It's called infrared light outside one end of the spectrum,and ultraviolet light outside the other end.,
Any incandescent source such as candle flame, sun, carbon arc lamp would give continuous spectrum. When the temperature is low then red and orange may be there. As temperature increases then spectrum would extend towards violet end
violet with shortest wave length is deviated most this type of spectrum ranging from violet and one end red at other and without any discontinuous is called continuous spectrum
Prism spectrum is formed due to DISPERSION but grating spectrum is formed due to DIFFRACTION. In prism spectrum we have only one order but in grating spectrum we can have second order too IN prism spectrum we have continuous spectrum but in gratings we have only line spectrum In prism spectrum red end will be closer to the direct ray but in grating spectrum violet end will be closer to the direct ray
The part of the rainbow that you can see is. There's more to the rainbow than what you see ... outside the red end and outside the violet end. Those regions are composed of parts of the spectrum that are not visible.
ultraviolet radiation
Gamma rays are at the end of the spectrum
Invisible to humans but visible to some animals (eg bees).
The colour at the opposite end of the colour spectrum is violet.
Spectrum - band - ended in 1973.
Spectrum HoloByte ended in 1999.
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