The size of the novel coronavirus is about 125 nm. This concept can be interpreted as the wavelength of visible light between 400 and 760 nm. This shows that the size of the novel coronavirus is much smaller than the wavelength of visible light.
Novel coronaviruses belong to the genus β. Novel coronaviruses have an envelope, round or oval particles, often polymorphic, and are 60-140 nm in diameter. The name also depicts the virus very graphically: the novel coronavirus is oval in shape and looks like a crown with an envelope around it.