Hi, My son has given jee mains on 3^rd april 2016 and hopefully will get 110 plus marks. Actually he has solved more sums of advanced level. His weak subject is Physics. Kindly give some tips to improve his physics so as to get good rank in jee advanced. Thanks....

Hopefully cutoff for this year might be around 109 or 111 in Gen Cat..
If your son was/is preparing for JEE Advanced, than authomatically prepared for JEE Main..
For Physics, he need to be bit analytically and more stress on derivative and numerical part without looking solytion or answer as earliest.
Regular practice is very important.