Science

Yes, definitely you can use it. Dimensions are most important thing in JEE physics. You must use this in every problem.

Economics is however regarded as a science subject but the field is different. Though economics is based on using science calculations but they are completely different field. If your future is concerned with arts then you will have to choose economics, if your main focus is on science then you may

Yes, you can do PG course via distance. There are many universities offering the same. Check according to your location.

For M.Sc in any of the IITs, you will have to appear for JAM and depending upon your marks you will be called for counselling. Cut-offs you will know by the month of March and will be Category wise. For Physics-19.51 marks, Chem-14.79, Maths-23.35 (General), you will get the clear marks at the time

Hello,
There are many books available for every topic of JAM Physics. So, instead of buying these books separately I would suggest you to go for study materials. Click here http://bit.ly/2ICKyE9 to know who provides the best JAM study materials. Study materials are not that expensive as those books a

The minimum eligibility for admission to B.Sc chemistry course is 10+2 in science stream (either PCB or PCM).
No, there is no separate entrance exam for this.
To know more follow the link - https://www.shiksha.com/science/course/b-sc-in-chemistry-loyola-college-lc-chennai-nungambakkam-82605

Since your percentage all over is very good and you belong to SC category even if you score 95 percentile, that can provide you with some calls of IIMs. For FMS, you need to get a min. of 98 percentile. There is still an extra edge that you have due to the category over other students. All the best!

Hi,
Biomedical Engineering: Eligibility.
Candidate must have passed the 10+2 or equivalent examination from a recognised state or central board with at least 50% (40% to 45% for reserved category candidates) of the marks with physics, chemistry, and mathematics/biology as the major subjects of study

Hi. The minimum eligibility decisive factor for a student to take admission in B.Sc. Life Science is that the candidates must have passed 10+2 in Physics, Chemistry and Biology (PCB). The candidate should have scored a minimum of 50% aggregate marks in thesesubjects. So, you can't apply. Thanks!