Question

Statement 1: Heat transfer by conduction and convection requires material medium.
Statement 2: Heat transfer by radiation doesn't require a material medium

• A. $\text{Both statements are correct}$
• B. $\text{Both statements are incorrect}$
• C. $\text{Statement-1 is correct and Statement -2 is incorrect}$
• D. $\text{Statement-2 is correct and Statement -1 is incorrect}$

Answer 1

The correct option is A $\text{Both statements are correct}$

Conduction and Convection are heat transfer phenomenon which requires medium to transfer or propagate the heat among temperature gradient.
In case of radiation heat transfer takes in the form of electromagnetic waves which do not require any medium to travel.
Hence, both the statements are correct.