I think least electricity is used between probably 7-8a.m. and 4-5p.m.
This is because, around those times, the suns already out. Depending on how sunny it is, it may not be as cold as all the other times of the day. And by then, buildings are typically already warmed all up. Everybody's body heat also may play a factor in buildings. ( if there is a ton of people )
A wavelength is the distance
between two identical peaks, troughs or crests in a wave. The unit of
wavelength can be meters, centimeters, millimeters, nanometers and so on.
perpendicular to the wave motion.
I think it occurs whenever waves come together so that they are in phase with each other.
