Question

how to solve numerical in chemistry n physical.plzz ??

Answer 1

The chemistry numerical are only based on the formula. Just remember it

Answer 2

for physics,
you should start from the theory...
you should look for the simple numericals first which are based directly on formula then try to solve conceptual questions...
after that you can attempt complex questions...
you can do the same for the chemistry too .....
but conceptual clarity is must in both the subjects