Ultraviolet (UV) radiation is similar to visible light in all physical aspects, except that it does not enable us to see things. The light that enables us to see things is referred to as visible light and is composed of the colors we see in a rainbow.
Playing Regulations. A game of basketball is made up of four quarters, each ten (or in the National Basketball Association 12,) minutes long. At the start of every game the referee throws the basketball up in the air, and one player from each team tries to hit it to their teammates, that is called a jump ball..
A professional games under NBA regulations last a minimum of 48 minutes (4 quarters of 12 minutes), while under FIBA regulations last a minimum of 40 minutes (4 quarters of 10 minutes). After the ending of the four mandatory quarters, if the game is tied, it will go on a number of overtime quarters until a team surpasses the other in terms of points scored.