CBSE Class 12 Physics paper was moderate in difficulty but the paper was lengthy. Hence many students were unable to complete the paper in the alotted time. In my opinion, CBSE should give grace marks in Physics to all candidates and from my experience, I can say CBSE will definitely consider giving grace marks. How much grace marks should be given, that completely depends on CBSE but a minimum of 5-6 grace marks will surely be awarded.