Question

Transfer of heat by _________is faster than conduction.

Answer 1

1. Heat can be defined as the energy which flows from the body of a higher temperature to a body of lower temperature.
2. There are three modes of transfer of heat i.e conduction, convection, and radiation.
3. In radiation, heat is transferred from the hot body to the cold body without the need for a medium between them.
4. There is no medium required and hence heat can be transferred even in a vacuum.
5. Conduction is a slower mode of heat transfer than the other two modes.

Hence, transfer of heat by radiation and convection is faster conduction.