Question

What type of heat does not require matter?

Answer 1

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.

Answer 2

It would be Thermal Radiation