What is light?
Wave-particle duality Light acts as both a wave and a particle Light travels as a wave and transfers energy from one location to another Particles of light are called photons. They have no mass and they carry specific amounts of energy. Video Link
Light waves The speed of light is a constant in different mediums Speed of light in a vacuum 𝑐=3.0× 10 8 𝑚/𝑠 So our familiar wave speed equation becomes… 𝒄=𝒇𝝀 Higher frequency means shorter wavelength and vice versa Also, higher frequency waves means higher energy photons
Light waves Light waves are also called electromagnetic waves Light travels as two perpendicular waves, one electric and one magnetic, with the same wavelength
Electromagnetic spectrum Electromagnetic waves occur in a wide range of wavelengths (or frequencies) called a spectrum. Only a very small portion of this spectrum is visible to humans. Video Link