Here are some tips on how to prepare for 11th class CBSE, PCM:

1. Start early. The earlier you start studying, the better prepared you will be for the exams. Don’t wait until the last minute to start studying.
2. Set realistic goals. Don’t try to cram everything into the last few weeks before the exams. Set realistic goals for yourself and make a study plan that you can stick to.
3. Find a study buddy. Studying with a friend can help you stay motivated and on track. You can quiz each other, discuss concepts, and help each other understand difficult material.
4. Take breaks. It’s important to take breaks when you’re studying. Get up and move around every 20-30 minutes to avoid getting burned out.
5. Get enough sleep. Getting enough sleep will help you stay focused and retain information. Aim for 8-10 hours of sleep per night.
6. Eat healthy foods. Eating healthy foods will give you the energy you need to study. Avoid sugary drinks and processed foods.
7. Manage stress. Stress can be a major obstacle to learning. Find healthy ways to manage stress, such as exercise, yoga, or meditation.
8. Don’t be afraid to ask for help. If you’re struggling with a concept, don’t be afraid to ask your teacher or a tutor for help.

Here are some additional tips for each subject:

• Mathematics: The NCERT textbook is a good starting point for learning the concepts. However, you will need to practice solving problems to master the material. There are many practice books available, such as the R.D. Sharma series.
• Physics: Physics is a challenging subject, but it can be rewarding if you put in the effort. The NCERT textbook is a good starting point, but you will also need to do practice problems. There are many practice books available, such as the H.C. Verma series.
• Chemistry: Chemistry is a vast subject, but it can be broken down into smaller, more manageable topics. The NCERT textbook is a good starting point, but you will also need to do practice problems. There are many practice books available, such as the M.S. Chauhan series.

I hope these tips help you prepare for 11th class CBSE, PCM. Good luck!