Diffraction is a classic optical phenomenon accounting for the propagation of light waves. The efficient calculation of light diffraction is of significant value toward the real-time prediction of ...
Notice how the quantities above have both a size and a direction associated with them. The direction of a vector can be given in a written description, or drawn as an arrow. The length of an arrow ...
Scalar quantities have only magnitude (size). For example, 11 m and 15 m s-1 are both scalar quantities.