u hav already done a gr8 job in identifying that these are the two topics u do not understand .. well now the solution .. well for the chapters of physics I suggest that u go and start with HC Verma .. that is the best book . n as u will do it thouroughly u will realize tat ur doubts are getting clear .
well now about the inorganic chem .. well it is always a probelm .. u will need to cram a lot of things .. i think that arihnat book has some structure with it ... so u may try that ..