How does electromagnetic energy generated from the center of the sun reach the Earth?
1 Answer
Feb 2, 2016
Through the process of "Radiation".
Explanation:
Energy can be transferred in various ways:
1) Contact (solids); it is the case when you place a hot body in contact with a cold one. Energy passes from the hot to the cold;
2) Convection (liquids/fluids): when you heat, say, water. The hot portion of water starts to move around (due to the change in density) and transfers energy to the cold part;
3) Radiation (vacuum/gasses): in this case energy travels as radiation (an electromagnetic wave) carrying an energy proportional to its frequency
This wave can travel through vacuum because it doesn't need a material medium to sustain its propagation.
