Hello Lakshay,
As per your query , for every course there is some basic criteria to pertain that course. JEE Mains is a national level exam where several students give test to get admission in NIT in their favourite branch. See, IT is not a separate course it is also the one of the branch in engineering . And there are several branches in which physics, maths, chemistry implement like electrical branch, mechanical branch, civil branch and soon.
Most of the students did not choose coding as a optional subject in their +2 so physics, chemistry and maths are the common subject for all the students so they are choose as a selection criteria for the jee mains after that according to percentile the branches will be allot to each Aspirant.
Hope it will help you.
Revert if any query.
Good luck!!

Hi Aspirant,

Mathematics is important in every stage of persons life.. Maths is very helpful for writing algorithms in computer science. You have programs related to maths. For artificial intelligence mathematics is the core subject.

Comming to physics the hardware of the computer, its components microprocessor relates to physics.Logical  gates we learned in physics are used in computer science in digital logic deaign, and micro processors and micro controllers subjects.

And there are companies who creates high end computers which Includes chemistry and physics. In each and every element you can see chemistry the periodic table elements.. You need to have knowledge on everything. In btech first year also some colleges has physics, chemistry, m1 as subjects.

I hope this helps!

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