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
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.
Gamma rays are at the end of the 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
Invisible to humans but visible to some animals (eg bees).
Spectrum - band - ended in 1973.
Spectrum HoloByte ended in 1999.
A spectrum goes from red at the low frequency end to violet at the high frequency end.
nothing
colors are just different frequencies of electromagnetic energy. the higher the frequency (or shorter wavelength), the closer to purple the colors appear until they reach the end of the visible spectrum. outside of the spectrum of visible light but remaining on the EM radiation scale, you have gamma radiation at one end and infrared light and microwaves at the other end.