While the book is a powerhouse of knowledge, it is not without its critics. For an average student, the sudden jump in difficulty level can be daunting. The book assumes a strong foundation in mathematics, specifically algebra and trigonometry, which some Class 9 students may still be developing. Furthermore, the density of problems can lead to "burnout" if the student does not balance this study with their regular schoolwork.
Helps in developing logical thinking and eliminating options. s chand iit foundation class 9 physics pdf