You can download the S Chand IIT Foundation Class 9 Physics PDF from the following link:
Basic wave theory and the fundamentals of current and resistance are introduced to set the stage for Class 10 and 12 physics. Features of the S Chand Physics PDF/Book s chand iit foundation class 9 physics pdf
Each chapter begins with a "Key Concepts" synopsis to help with rapid recall and mastery. You can download the S Chand IIT Foundation