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lowest photon energy
the colors as following red, orange, yellow, etc.
highest photon energy
the colors as following violet, blue, green, etc
speed of light in a vacuum
3 × 108 meters per second (m/s), the maximum speed at which all energy, matter, and information in the universe can travel.
diffraction of light
the bending of light waves as they pass around the edges of an obstacle or through an opening.
refraction of light
the bending of light as it passes from one medium to another due to a change in its speed.
When transmitting, an antenna converts
electrical energy into electromagnetic (EM) waves.
When receiving, an antenna converts
electromagnetic (EM) waves into electrical energy.
If a wavelength of a color is shown, then
that wavelength color and higher photons are used.
Photons from the sun enter the cell. Their energy is absorbed by electrons in the solar cell. . .
which then flows in one direction.
photovoltaic solar cell converts
light energy into electrical energy
Note 
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