The type of wave seen by human eyes are the visible light waves, having the range of wavelengths from 400 nm to 700 nm.
The given problem is based on the concepts of electromagnetic spectrum. The range or the distribution of electromagnetic radiation as per the frequency and wavelength, is known as electromagnetic spectrum.
As per the given question, the human eye can see the visible light spectrum. These spectrum of light rays can be visible or perceived by the human eye in normal condition, or we can say that the range of wavelengths fall under visible spectrum can be sensed by human eye.
Moreover, the visible light is usually defined as having the range of wavelengths from 400 nm to 700 nm, which are in color range from purple to red. The visible light is generally characterized by the symbol [tex]\lambda[/tex] , also known as Lambda.
Thus, we can conclude that the type of wave seen by human eyes are the visible light waves, having the range of wavelengths from 400 nm to 700 nm.
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