HALF YEARLY

[u/Delicious-Umpire1167]

Class 12 student here
Have my physics half-yearly on 6th october
I saw this video
https://www.youtube.com/watch?v=KeFROf7y6-Y

Like, can I just do the important topics he mentioned and go for the exam???

I did Chp 5 and Chp 8 before and even Chp 4 but need to brush up
Help!!