Light has both the parts/kind of energy i.e. electric and magnetic and hence is named an electromagnetic radiation. All electromagnetic waves are transverse. Light waves don't require a medium to travel and transfers both electrical and magnetic energy. Light has disparate wavelengths and thus shows different colors for specific ranges of wavelengths. Wavelength is that the interval between two consecutive crests or troughs. Light waves travel during a straight direction which is named linear propagation of sunshine (Light).