You need to get at least 40% overall to pass a BSc module (levels 4-6) and 50% to pass an MSci module (level 7).  If you do not pass the module at the first attempt you are permitted one resit.  From 2015/16 all resits will be held in the summer following the May exam.  In the School of Physics and Astronomy all of our modules are assessed by 'synoptic' resits, this means that they are assessed by 100% exam and your coursework marks no longer count towards the total for the resit.  The exception to this are the lab-based modules and projects which will each have different resit arrangements. 

The timetable for summer resits is announced in mid-July.  The resit period usually lasts from late-July until mid-August.