Multiple choice general knowledge science & technology

What is the wavelength interval of Blue color?

  1. 490–450 nm

  2. 560–490 nm

  3. 700–630 nm

  4. 450–400 nm
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Explanation

Blue light in the visible spectrum has a wavelength range of approximately 450-495 nanometers. The option '490-450 nm' represents this range, though it's written in descending order. This wavelength range places blue light between green (longer wavelengths) and violet (shorter wavelengths) in the electromagnetic spectrum. Blue light has higher frequency and energy compared to green and yellow light.

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