The ball with which Table Tennis is played is called Ping Pong Ball.
According to the International rules, the diameter of the ping pong ballmust be not less than 39.5 millimeters and not greater than 40.5 millimeters having a mass of 2.7 grams.
Heat transfer through radiation takes place in form of electromagnetic waves mainly in the infrared region. It depends on nature of the body, its temperature and kind & extent of its surface.