Inroduction to refractive index calculator The refractive index describes the change in speed of light as it enters from air into the material under observation. Therefore, the refractive index is a material property and everything we see around in our daily lives is composed of different materials. All of the

What is blackbody radiation? Any object that is composed of subatomic particles emits electromagnetic (EM) radiations when it is above the absolute temperature of 0o Kelvins (which corresponds to approximately -273.15o K). This emission of EM waves is termed thermal radiation and it represents the internal energy converted by the