Introduction:
Answering descriptive questions in the IIT JAM Physics exam requires a systematic approach and a clear understanding of the question. By following a specific format, you can ensure maximum marks for your answers. Let's discuss the format in detail.

Heading: Understanding the Question
Before jumping into answering the question, it is crucial to thoroughly understand what the question is asking. Read the question multiple times and identify the key points or concepts it is testing. This will help you structure your answer effectively.

Heading: Introduction
Begin your answer with a concise introduction that provides an overview of the topic or concept being discussed. This introduction should set the context for the rest of your answer.

Heading: Main Body
In the main body of your answer, break down the question into smaller sub-questions or components. Address each sub-question separately and provide detailed explanations, derivations, or examples to support your answer. Use bullet points to clearly present your points.

Heading: Diagrams and Equations
If the question involves diagrams or equations, include them in your answer wherever necessary. Clearly label the diagrams and equations and provide a brief explanation of their significance in relation to the question.

Heading: Examples and Applications
Wherever applicable, provide real-life examples or applications of the concept being discussed. This demonstrates your understanding and ability to apply theoretical knowledge to practical situations.

Heading: Conclusion
Conclude your answer by summarizing the main points discussed and reiterate the key findings or insights. A concise and well-structured conclusion helps to leave a lasting impression on the examiner.

Heading: Visual Appeal
To make your answer visually appealing, use HTML tags like bold or italic to highlight important keywords or phrases. Use bullet points or numbered lists to present information in a clear and organized manner. Break the content into paragraphs to enhance readability.

Heading: Word Limit
Ensure that your answer falls within the specified word limit, which is less than 300 words in this case. Use concise and precise language to convey your ideas effectively within the given constraint.

Conclusion:
By following this specific format, you can structure your answers in a systematic and organized manner, ensuring maximum marks in the IIT JAM Physics exam. Remember to understand the question, provide a clear introduction, address sub-questions, include diagrams and equations, provide examples and applications, and conclude your answer effectively. Additionally, make your answer visually appealing by using HTML tags for headers and key points, and ensure that your response falls within the word limit.