Hey aspirant,

The syllabus for JEE is as follows:

PHYSICS:

• Laws of Motion
• Kinematics, Work
• Energy & Power
• Gravitation
• Rotational Motion
• Physics & Measurement
• Properties of Solids & Liquids
• Thermodynamics
• Electrostatics
• Oscillations & Waves
• Kinetic Theory of Gases
• Magnetic Effects of Current & Magnetism
• Electromagnetic Induction & Alternating Currents
• Current Electricity
• Optics
• Electromagnetic Waves
• Dual Nature of Matter & Radiation
• Electronic Devices
• Atoms & Nuclei
• Communication Systems

CHEMISTRY:

Physical Chemistry:

• Some Basic concepts in Chemistry
• States of Matter
• Chemical Bonding & Molecular Structure
• Atomic Structure
• Solutions
• Redox Reactions & Electrochemistry
• Equilibrium
• Chemical Thermodynamics
• Chemical Kinetics
• Surface Chemistry

  Inorganic Chemistry:

• General Principles & Process of Isolation of Metals

• Hydrogen

• p – Block Elements

• s – Block Element

• Co-ordination Compounds

• d – and f – Block Elements

• Classification of Elements & Periodicity in Properties

• Environmental Chemistry
  Organic Chemistry:

• Some Basic Principles of Organic Chemistry

• Organic Compounds Containing Halogens

• Purification & Characterization of Organic Compounds

• Hydrocarbons

• Polymers

• Organic Compounds Containing Nitrogen

• Organic Compounds Containing Oxygen

• Bio Molecules

• Principles Related to Practical Chemistry

• Chemistry in Everyday Life

MATHEMATICS:

• Sets, Relations, Functions.
• Complex number and Quadratic equations.
• Matrices & Determinants.
• Permutation & Combination.
• Mathematical Induction.
• Binomial Theorem and its simple application.
• Sequencers & Series.
• Limit, Continuity & Differentiability.
• Integral Calculus.
• Differential Equations.
• Coordinate Geometry.
• Three Dimensional Geometry.
• Vector Algebra.
• Statistics & Probability.
• Trigonometry.
• Mathematical Reasoning.

For further details you can visit https://engineering.careers360.com/articles/jee-main-syllabus

ALL THE BEST!

Hello aspirant...

JEE consists of two examination namely JEE MAINS and JEE ADVANCED.

JEE is a very standard exam . Many students give JEE to  get admission into prestigious institutions like IITs/NITs/IIITs.

So for an  aspirant it becomes very important to know the syllabus and pattern of this exam very well and accordingly plan their strategy to crack the exam with a good rank.

So I'll suggest you to go through the link below to know detailed syllabus of JEE.

https://engineering.careers360.com/articles/jee-main-syllabus

https://engineering.careers360.com/articles/jee-advanced-syllabus

Also syllabus is likely to get reduced for session 2020-2021 so stay tuned.

Thanks and best of luck..

I hope it'll be helpful...