Question

In which of the following things transmission of heat cannot be done by conduction
A) tea
B)air
C) vacuum
D) water
Answer koi ek hai yárr sab dono bol te h

Answer 1

tea, water and air involves convection
answer is vaccum

Answer 2

C) vacuum because in vacuum there is no medium for air & without air heat can’t be propagated so answer is vacuum.