Hello aspirant.

If your question is regarding the weightage of the syllabus and with the respective subject topic. As NTA had released a new exam pattern, increasing the number of attempts for JEE mains 2021. According to that, JEE mains 2021 is conducted 4 times by NTA that is starting from February to May. Coming to exam pattern JEE mains 2021 contains 90 questions which include 20 Objective questions having 4 options each with only 1 correct option and 10 Numerical questions out of which 5 needs to be answered in each subject. Also out of 90 questions aspirants need to answer only 75 questions. For every correct answer in MCQs, you will be awarded 4 marks and -1 for a wrong answer, for every correct answer in numerical questions you will be awarded 4 marks and 0 for every wrong answer. Also this year JEE MAINS is out of 300 maximum marks.

For more information, refer to the below link.

https://www.google.com/amp/s/engineering.careers360.com/articles/jee-main-exam-pattern/amp

For the syllabus refer to the below link.

https://www.google.com/amp/s/engineering.careers360.com/articles/jee-main-syllabus/amp

For the JEE mains syllabus with weight refer to the below link.

https://www.google.com/amp/s/engineering.careers360.com/articles/jee-main-syllabus-weightage/amp

For the JEE advanced syllabus with weightage refer to the below link.

https://www.google.com/amp/s/engineering.careers360.com/articles/jee-advanced-syllabus-weightage/amp

For the sample papers refer to the below link.

https://www.google.com/amp/s/engineering.careers360.com/articles/jee-main-sample-papers/amp

Hope this answer helps you

All the best!!!!