APC New Secondary Physics Class 9 is a comprehensive textbook designed for students preparing for board examinations and competitive entrance tests. This book covers all essential physics concepts aligned with the secondary curriculum, featuring clear explanations, detailed diagrams, and worked examples to build conceptual understanding. The text includes a wide range of practice problems, numerical exercises, and objective-type questions to strengthen problem-solving skills. Each chapter is structured logically with key points summarised for quick revision. Ideal for classroom learning and self-study, this edition helps students master fundamental physics principles and develop confidence in tackling complex problems. Perfect for Class 9 students seeking a reliable reference guide that balances theory with practical application.