Radiation is the only method of heat transfer that does not require matter.
Facts about Radiation :
- The energy from the sun is received in the form of radiation.
- It travels in the form of waves.
- It can be absorbed by substances in its path.
- Heat Radiation travels through air.
- Black surfaces are the emitters of heat radiation.
- Shiny surfaces are the reflectors of heat radiation.
- Heat transfer by Radiation doesn't require any medium.
