About NCERT Exemplar Class 12
The main objective of the NCERT Exemplar Problems class 12 PDF on ‘Exemplar Problems in Physics’ is to provide the teachers and students a large number of quality problems with varying cognitive levels to facilitate teaching/learning of concepts in physics that are presented through the textbook for Class XII. It is envisaged that the problems included in this volume would help the teachers to design tasks to assess effectiveness of their teaching and to know about the achievement of their students besides facilitating preparation of balanced question papers for unit and terminal tests. The feedback based on the analysis of students’ responses may help the teachers in further improving the quality of classroom instructions. In addition, the problems given in this book are also expected to help the teachers to perceive the basic characteristics of good quality questions and motivate them to frame similar questions on their own. Students can benefit themselves by attempting the exercises given in the book for self assessment and also in mastering the basic techniques of problem solving. Some of the questions given in the book are expected to challenge the understanding of the concepts of physics of the students and their ability to applying them in novel situations.
The problems included in NCERT Exemplar Problems class 12 PDF were prepared through a series of workshops organised by the DESM for their development and refinement involving practicing teachers, subject experts from universities and institutes of higher learning, and the members of the physics group of the DESM whose names appear separately. We gratefully acknowledge their efforts and thank them for their valuable contribution in our endeavour to provide good quality instructional material for the school system.
The National Council of Educational Research and Training (NCERT) acknowledges the valuable contribution of the individuals and organisations involved in the development of Exemplar Problems in Physics for Class XII. The Council also acknowledges the valuable contributions of the following academics for reviewing and refining the manuscripts of NCERT Exemplar Problems class 12 PDF: A. A Rangwala, Professor (Rtd), Department of Physics, University of Mumbai, Mumbai; Girija Shankar, PGT (Physics), Rajkiya Pratibha Vikas Vidyalaya, Surajmal Vihar, Delhi; Indra Saini, PGT (Physics), Ramjas School, Pusa Road, New Delhi; Lata Kumari, PGT (Physics), Chinmaya Vidyalaya, Vasant Vihar, New Delhi; R. S Dass, Vice-Principal (Rtd), BVB Senior Secondary, School, Lajpat Nagar, New Delhi; Shirish Pathare, Scientific Officer, ‘D’, Homi Bhabha Centre for Science Education, V.N. Purav Marg, Mumbai; Vandana Grover, PGT (Physics), DAV Public School, Sector 14, Gurgaon; Vinod Prakash, Professor (Rtd), Department of Physics, University of Allahabad, Allahabad; and Yashu Kumar, PGT (Physics), Kulachi Hans Raj Model School, Ashok Vihar, New Delhi. Special thanks are due to Professor Dipan Ghosh, Department of Physics, IIT, Mumbai for his continued support to this task; and providing some problems for Chapter VII.