The IIT JAM Physics exam is a highly competitive exam that requires a systematic and well-planned preparation strategy. Here is a detailed study plan to help you ace the exam:

1. Understand the Exam Pattern:
- Familiarize yourself with the exam pattern and syllabus to understand the weightage of each topic and the type of questions asked.

2. Create a Study Schedule:
- Divide your time effectively by creating a study schedule that allocates sufficient time for each topic. Be realistic and make sure to include breaks for relaxation.

3. Study Material:
- Gather good quality study material such as textbooks, reference books, and previous years' question papers to cover the entire syllabus. EduRev provides a wide range of study material for IIT JAM Physics preparation.

4. Basic Concepts:
- Start by revising the basic concepts of each topic. Understand the fundamental laws, principles, and equations thoroughly. Practice numerical problems to strengthen your understanding.

5. Topic-wise Preparation:
- Divide the syllabus into smaller topics and allocate specific time for each topic. Make sure to cover all the important topics and prioritize them based on their weightage in the exam.

6. Practice Questions:
- Solve a variety of practice questions and previous years' papers to improve your problem-solving skills and speed. This will also help you understand the question pattern and identify important topics.

7. Mock Tests:
- Take regular mock tests to assess your preparation level and identify your strengths and weaknesses. Analyze your performance and work on improving your weak areas.

8. Revision:
- Regularly revise the topics you have studied to retain the concepts and formulas in your memory. Create short notes or flashcards for quick revision.

9. Time Management:
- Practice solving questions within a specific time limit to improve your speed and accuracy. Time management is crucial during the exam to attempt all the questions.

10. Stay Motivated:
- Stay motivated throughout your preparation journey. Surround yourself with positive and supportive peers. Take short breaks to relax and rejuvenate.

Remember, consistency and perseverance are key to success in the IIT JAM Physics exam. Follow this study plan religiously and adapt it as per your strengths and weaknesses. Good luck with your preparation!