The process of transfer of heat from one body to the other body without the aid of a material medium is calledAConductionBRadiationCConvectionDAdvectionAnswer: B. RadiationRead Explanation:The process by which heat is transferred without the help of any material medium is called radiation. As, radiation is the mode of heat transfer in which heat is radiated or transmitted from one place to another in the form of rays or waves. Conduction: This involves the transfer of heat through a material due to the collision of molecules. It requires a material medium. Convection: This involves the transfer of heat through the movement of a fluid (liquid or gas). It also requires a material medium.
