Your best place to find 2012 past papers of physics 12th class from bise gujranwala board. These old up to date papers can be downloaded or viewed online.
2012 Physics Past Papers 12th Class BISE Gujranwala Board Analysis
Campus.pk gives you unique insight into each past paper about what are the top chapters and topics.
Physics Past Papers 12th Class BISE Gujranwala Board