Practising derivations in physics class 11 is essential to score good marks in the exam. Derivations are not only important for exams but also plays a significant role in understanding the concepts of physics. Here are some ways to practice derivations of physics class 11.

1. Understand the concept
Before starting any derivation, it is crucial to understand the concept behind it. One should have a clear idea of the formulae and equations used in that particular derivation.

2. Learn the steps
Each derivation has a set of steps that need to be followed. Memorizing these steps can help in solving the derivation quickly.

3. Practice regularly
Practicing regularly is crucial to mastering derivations. One should solve at least one derivation daily to keep the concepts fresh in mind.

4. Use diagrams and graphs
Using diagrams and graphs can help in visualizing the concept and make it easy to understand. It also helps in drawing a clear picture in the mind and solving the derivation correctly.

5. Solve previous year papers
Solving previous year papers is an excellent way to practice derivations. It gives an idea about the type of questions asked in the exam and helps in understanding the exam pattern.

6. Take help from teachers and classmates
If one is facing difficulty in understanding any derivation, then taking help from teachers or classmates can be beneficial. They can explain the concept in a better way and make it easy to understand.

In conclusion, practising derivations regularly and understanding the concept behind them is crucial for scoring good marks in the exam. Using diagrams and graphs, solving previous year papers, and taking help from teachers or classmates can also be helpful.