Hello,
The JEE main 2027 will include three subjects: Physics, chemistry and Mathematics.
PHYSICS:
Units and Measurements: kinematics, laws of motion, work, energy & power: rotational motion & moment of inertia: gravitation: properties of solids and fluids: thermodynamics: kinetic theory of gases: oscillations & waves: electrostatics: current electricity; magnetism & magnetic effects of current; electromagnetic induction & alternating current; optics; atoms and nuclei; modern physics topics.
CHEMISTRY:
Physical chemistry (basic concepts, mole concept, stoichiometry; atomic structure; chemical bonding; thermodynamics; equilibrium; chemical kinetics; solutions and chemical reactivity), inorganic chemistry (periodic table, classification of elements including p-, d-, f-block, coordination compounds), and organic chemistry including basics of hydrocarbons, organic compounds containing halogens/oxygen/nitrogen etc.
MATHEMATICS
Sets, relations & functions; complex numbers and quadratic equations; matrices and determinants; permutations & combinations; sequences & series; limits, continuity & differentiability; integral and differential calculus; coordinate geometry (lines, circles, conics); 3D geometry; vector algebra; trigonometry; statistics & probability.

Hope this helps you.

Hello,

From here you can access exact JEE Main 2027 syllabus from the mentioned link below:

https://engineering.careers360.com/articles/jee-mains-2027-syllabus-pdf

Hope it helps.