There are many great books for physics in class 11, but some of the most popular and well-regarded include:

• Concepts of Physics by H.C. Verma: This book is widely regarded as one of the best books for conceptual understanding of Physics. It is very comprehensive and covers all the topics in the class 11 syllabus. The author has a very clear and lucid writing style, which makes the concepts easy to understand. The book also contains a large number of solved and unsolved problems, which are very helpful for practicing and improving your problem-solving skills.
• Understanding Physics by D.C. Pandey: This book is another excellent reference for students who want to gain a deep understanding of Physics. It is more comprehensive than Concepts of Physics and covers a wider range of topics. The author has a very systematic and structured approach to teaching Physics, which makes it easy to follow. The book also contains a large number of solved and unsolved problems, which are very helpful for practicing and improving your problem-solving skills.
• Fundamentals of Physics by Halliday, Resnick, and Walker: This book is a classic text on Physics and has been used by students for many years. It is very comprehensive and covers all the topics in the class 11 syllabus. The authors have a very clear and concise writing style, which makes the concepts easy to understand. The book also contains a large number of solved and unsolved problems, which are very helpful for practicing and improving your problem-solving skills.

Ultimately, the best book for you will depend on your individual learning style and preferences. If you are looking for a book that will help you develop a strong conceptual understanding of Physics, then Concepts of Physics by H.C. Verma is a great choice. If you are looking for a book that will provide you with a deeper understanding of Physics, then Understanding Physics by D.C. Pandey is a good option. And if you are looking for a classic text on Physics that is comprehensive and well-written, then Fundamentals of Physics by Halliday, Resnick, and Walker is a great choice.

In addition to these textbooks, there are also many other great resources available for learning Physics. These include online tutorials, Khan Academy videos, and practice problems from past exams. By using a variety of resources, you can ensure that you are getting the best possible education in Physics.