Our video lectures will make you an expert in the area of physics and you will be better ready to face competitive exams like IITJEE Mains and advance.This package contains:An external hard drive which covered 186 hours of 370 video parts with 92 GB size.Supplemented with 522 pages and 27 MB size of e- study material. It covers physics of XI standard CBSE and competitive exams like IITJEE. Validity: 1 year. Compatible OS: Windows XP/7/8 , License: Single Machine with Windows Operating System.