Question

The heat from the Sun must pass through the vacuum of space before it reaches the Earth. Which process is illustrated in this example?

a.Induction
b.radiation
c.Conduction
d.convection

Answer 1

the answer is b because radiation is the electromagnetic radiation from the surface of an object which is due to the object's temperature. It is also the only type of heat transfer that can move through the vacuum of space because electromagnetic waves to not need matter to travel.

Answer 2

The question says, the heat of the sun must pass through the vacuum space before it reaches the earth. Which process is illustrated in this example. The correct option is B, that is, radiation. Radiation is the mode of transmission of heat energy as electromagnetic waves through space or through a material medium. Thus, the heat from the sun get to the earth surface through radiation.