Hello,

Yes, with an 83% score, you can study a science course in 11th grade. Most schools set their cutoff for science stream admission between 75% and 85%, making you eligible. However, specific cutoff criteria vary by school and region. Check with the schools you're interested in for their exact requirements and availability. With your score, you should have a good chance of getting into the science stream in a reputable school.

Hope this helps you,

Thank you