Question

The characteristics of two methods of heat transfer are listed below:

Method A: No material medium is required and heat is transferred in all directions
Method B: Material medium like gas or liquid is required and heat is transferred only in the vertically upward direction

Which statement is correct? (5 points)

a
Method A is radiation and Method B is conduction.

b
Method A is radiation and Method B is convection.

c
Method A is conduction and Method B is radiation.

d
Method A is convection and Method B is radiation.

Answer 1

Answer:

b.method a is radiation .eg:sunlight reaches earth,

method b is convection. eg: water boiling