The concave lens is the one on the right. The image is: virtual erect (the same way up as the object) diminished (smaller than the object) nearer to the lens than the object and located at a distance from the lens less than the focal length.. It's virtual, upright and reduced.
Snooker tables are considerably larger than pool or billiard versions, their height is somewhat reduced and the pockets are smaller. Because this cue game utilizes higher number of smaller balls, these differences come as natural. The standard dimensions of a snooker table utilized in Europe are 12Ã6 feet.
A billiard table, billiards table, or pool table is a bounded table on which billiards-type games (cue sports) are played.