What is the wavelength of blue-violet light?

The wavelength range of visible light is between 770 and 390 nanometers.

Electromagnetic waves with different wavelengths make human eyes feel different colors;

1, 770 ~ 622 nm, feeling reddish;

2, 622 ~ 597 nm, orange;

3, 597 ~ 577 nm, yellow;

4, 577 ~ 492 nm, green;

5, 492 ~ 455 nm, indigo blue;

6, 455 ~ 390 nm, purple.

The wavelength of blue-violet light is between blue light and violet light.

The wavelength λ is equal to the product of the wave velocity u and the period t, that is, λ=uT. Waves with the same frequency travel at different speeds in different media, so their wavelengths are different.

Extended data:

Wavelength (or can be converted into frequency) is an important characteristic index of wave and a measure of its properties. For example, sound waves can be measured by their frequency. The range of sound waves audible to human ears is 20Hz-20k Hz, and the corresponding wavelength range is 17m- 17mm.

The visible light of human eyes ranges from the crimson wavelength of 760 nm to the purple wavelength of 390 nm.

When discussing the propagation of elastic waves, it is assumed that the medium is continuous, because when the wavelength is greater than the distance between molecules in the medium, countless molecules in the medium are vibrating continuously within a wavelength distance. From a macroscopic point of view, the medium seems to be continuous.

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