What is the range of wavelength of the spectrum of white light in nm?

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400 nm to 500 nm

500 nm to 600 nm

600 nm to 800 nm

All of the above

answer is D.

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Detailed Solution

Concept- All the hues in a rainbow of seven colors can be seen as the color white (that is violet, indigo, blue, green, yellow, orange and red) . The electromagnetic spectrum's visible band (also known as the visible band spectrum) is made up of this band of seven colors. Wavelengths in the electromagnetic spectrum span a large variety. Therefore, all of the visible spectrum's wavelengths may be included in white light.
There are several waves with various wavelengths or frequencies that make up the electromagnetic spectrum. X-rays, gamma rays, infrared, ultraviolet, and microwave waves are a few examples. These waves are grouped according to decreasing order of wavelength and rising order of frequency and energy. The above-mentioned spectrum's wavelengths or frequencies are invisible to the human eye.
The visible spectrum is the name given to the sole visible spectrum. It is a region of the electromagnetic spectrum that spans from 380 nm to 700 nm and is located between ultraviolet and infrared wavelengths. Roughly speaking, the visible spectrum ranges from 300 to 800 nanometers.
Colors from the violet, indigo, blue, green, yellow, orange, and red families make up the visible spectrum. A beam of white light is produced when all the visible spectrum's wavelengths are combined. A rainbow makes the colors of the visible spectrum more visible. All of the visible spectrum's wavelengths are present in options 1, 2, and 3.
Hence, the correct option is 4.

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