A) Heat transfer by conduction & convection require a material medium
B) Heat transfer by radiation does not affect the medium through which it passes

see full answer

21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!

An Intiative by Sri Chaitanya

Both A&B are True

Both A&B are false

A is true, B is false

A is false, B is True

answer is D.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

Conduction of heat takes place in two ways (1) transfer of energy of oscillation of atoms from one layer of atoms to the adjacent aler.

(ii) flow of free electrons from hotter region to colder region. In both cases a material medium is required.

Convective heat transfer takes place by actual transportaton of mass of the medium. So the medium is affected during conduction and convection.

But heat transfer by radiation takes place due to propagation of electro magnetic wave, which does not affect the medium.

Watch 3-min video & get full concept clarity