Which of the following best describes the composition of white light?

• A. A mixture of all visible wavelengths of light
• B. Only ultraviolet and infrared radiation
• C. A single wavelength of light
• D. Only red and blue wavelengths

Answer: (A)

Verified step by step guidance

1. Understand that white light is a type of visible light that appears colorless to the human eye because it contains multiple colors combined.
2. Recall that visible light is made up of a spectrum of wavelengths, each corresponding to different colors ranging from violet to red.
3. Recognize that white light is not a single wavelength but a combination of all the visible wavelengths mixed together.
4. Eliminate options that mention only specific wavelengths (such as only ultraviolet and infrared, or only red and blue) because these do not represent the full visible spectrum.
5. Conclude that the best description of white light is that it is a mixture of all visible wavelengths of light.