Hi Aspirant,

Chapter wise weightage for NEET exam 2020 is described below :-

@Physics

Physical world and measurements : 2%

Kinematics : 3%

Laws of Motion : 3%

Work, Energy and Power : 4%

Motion of system of particles and rigid body : 5%

Gravitation : 3%

Thermodynamics : 9%

behavior of perfect gases and kinetic theory : 3%

Oscillation and waves : 3%

Electrostatics : 9%

Current electricity : 8%

Magnetism : 5%

EMI and AC : 8%

Electromagnetic waves : 5%

Optics : 10%

Dual nature of matter and radiation : 6%

Atoms and Nuclei : 3%

Electronic Devices : 9%

Similarly for chemistry and biology syllabus you should read this article .

Good Luck!!