Table of Contents
What is infrared and ultraviolet spectrum?
Light (also referred to in professional literature as radiation) is best thought of as a spectrum consisting of ultraviolet light (UV) at the short end, visible light in the center, and infrared (IR) wavelengths at the long end. The high energy of UV radiation is particularly damaging to artifacts.
Which color of the visible spectrum lies close to the band of ultraviolet rays?
Spectral colors
| Color | Wavelength (nm) | Frequency (THz) |
|---|---|---|
| violet | 380–450 | 670–790 |
| blue | 450–485 | 620–670 |
| cyan | 485–500 | 600–620 |
| green | 500–565 | 530–600 |
Why rainbows are seen half circles do they form a complete circle explain?
The circle (or half-circle) results because there are a collection of suspended droplets in the atmosphere that are capable of concentrating the dispersed light at angles of deviation of 40-42 degrees relative to the original path of light from the sun.
What type of light can we see in the Rainbow?
The light we can see, made up of the individual colors of the rainbow, represents only a very small portion of the electromagnetic spectrum. Other types of light include radio waves, microwaves, infrared radiation, ultraviolet rays, X-rays and gamma rays — all of which are imperceptible to human eyes.
Is it possible that rainbows have ultraviolet bands we can’t see?
If you would throw a massive amount of glass pearls from a plane it would produce a wonderful rainbow but you could not detect an ultraviolet rainbow because glass is opaque in this wavelengths. Is it possible that rainbows have ultraviolet bands and infra red bands and we are not able to see? Yes, see engineer’s answer.
What are the spectral limits in a rainbow?
The spectral limits in a rainbow can be explained more technical by looking at the refractive index dispersion of water vapor, which can e.g. be found at refractiveindex.info. The UV, visible and near IR range lie in the wavelength region between 0.2 and 2.85 µm.
How can I tell if a rainbow is UV or IR?
Check the alignment of the rainbow with respect to the trees in each of the pictures. The UV band lies to the left of the visible band, while IR is found to be shifted to the right.