Hello  aspirant

hope you are doing well and safe. With reference to your query,  I would glad inform you that you dont need to worry if your physics is not good as their is no criteria of sectional cut off in neet exam . You overall marks will be considered in calculating the percentile and its depends on the college you are loooking for  ,top medical college have cut off above 540

Hope you found this answer informative. Best wishes for your future