UGC NET Paper 1 GA 2007 June Solved Paper

Earlier televisions have been made in a square shape called a 4:3 or 1.33 to 1 aspect ratio. Since HDTV has become standard, TVs are now made in a rectangular shape referred to as a 16:9 or 1.78 to l aspect ratio. TV programs and DVDs are recorded in both square formats (4:3) and wide screen formats (16:9).