Eric sends out an electromagnetic wave. Reid is 10 feet away and Will is 40 feet away. Who would have the weaker reading of the wave?
Will Reid
A B
However, the energy is diluted as an electromagnetic wave travels farther from its source because it spreads out over an ever-larger area.
energy is diluted
farther
diluted
MORE
MORE
farther from its source
weaker
reading of the wave
reading of the wave