According to the website below, they are blue because blue is the closest wavelength of the visible spectrum to ultraviolet light, and insects are attracted to ultraviolet light.
No
== Fluorescence== Fluorescent objects emit visible light when stimulated by ultraviolet light.
No. By definition, "ultraviolet" is that which is beyond the visible light - more specifically, beyond the violet part of visible light.
No, the visible part is called visible light. Ultraviolet is invisible to the human eye.
No, the visible part is called visible light. Ultraviolet is invisible to the human eye.
The wavelengths of visible light are longer than ultraviolet wavelengths.
Yes, they are not.
Visible light. The higher the frequency, the shorter the wavelength.
Visible light and ultraviolet rays are forms of electromagnetic radiation (EM). So are infrared, microwave and others.
No, it does not.
Ultraviolet and the infrared.