**NCERT Class 11 Physics Textbook (Part 1 & Part 2)**

This document is the official NCERT Class 11 Physics textbook (Part 1 & Part 2), published by the National Council of Educational Research and Training (NCERT), India. It is designed for students of Class XI following the CBSE and other state boards that adopt the NCERT curriculum. The book covers the fundamental concepts of physics such as the physical world, units and measurements, motion, laws of motion, work, energy and power, rotational dynamics, gravitation, oscillations, waves, properties of matter, thermodynamics, and fluid mechanics. It is prepared by a team of subject experts, university professors, and experienced school teachers under the NCERT Textbook Development Committee. The book is widely used for board exam preparation, competitive exams like JEE and NEET, and as a reference for higher education.