Which mode of heat transfer does not require a medium?
A
Conduction
B
Convection
C
Both conduction and convection
D
Radiation
Correct Answer: Option D — Radiation
Explanation:
Radiation is the transfer of heat energy through electromagnetic waves and does not require any physical medium, which is why heat from the ...
Radiation is the transfer of heat energy through electromagnetic waves and does not require any physical medium, which is why heat from the Sun can reach Earth through the vacuum of space.