JEE Main 2025 Chapter wise Weightage, Most Important Chapters for JEE Mains Physics, Chemistry and Maths

JEE Main 2024 Syllabus with Weightage

The section below covers the expected JEE Main Chapter wise Weightage 2024. The most important chapters in JEE Mains Physics, Chemistry and Mathematics have been listed with the number of questions that can be asked from each subject.

JEE Main Chapter wise Weightage 2024 Maths

JEE Main Chapter wise Weightage 2024 Physics

JEE Main Chapter wise Weightage 2024 Chemistry

NOTE: Candidates must note that this is only the expected weightage for JEE Mains 2024. Any changes in the syllabus might further change the chapter wise weightage too.

JEE Main Chapter wise Weightage 2023

NTA conducted JEE Main 2023 in month of January and April. According to the students’ the paper was moderately challenging with a well balance of chapters in both sessions. Mathematics was the most difficult subject, followed by Physics and Chemistry. However, in session 2, students found Chemistry to be slightly more challenging than Physics.

JEE Main Chapter wise Weightage 2023 Physics

JEE Main Chapter wise Weightage 2023 Chemistry

JEE Main Chapter wise Weightage Maths 2023

Also Check:

• JEE Main Physics Syllabus with Weightage
• JEE Main Chemistry Syllabus with Weightage
• JEE Main Mathematics Syllabus with Weightage

JEE Main Chapter wise Weightage 2022

JEE Main 2022 was conducted in June and July. Just like the previous year analysis, Mathematics was the most challenging subject due to long calculations and tricky questions, followed by Physics and Chemistry. Check the most weighted chapters in JEE Mains 2022 Physics, Chemistry and Maths in the section below.

JEE Main Chapter wise Weightage 2022 Physics

JEE Main Chapter wise Weightage 2022 Chemistry

JEE Main Chapter wise Weightage 2022 Maths

Read More: How to Attempt JEE Main Question Paper 2024?

JEE Main Chapter wise Weightage 2021

Due to the COVID-19 pandemic, JEE Mains was conducted four times in 2021 in the months of February, March, August and July. NTA also made changes to JEE exam pattern in the same year. Each subject now had 30 questions (20 MCQs and 10 integer type questions). Students were given a choice to attempt any 5 questions from the 10 integer-type questions.

JEE Main Chapter wise Weightage 2021 Physics

JEE Main Chapter wise Weightage 2021 Chemistry

JEE Main Chapter wise Weightage 2021 Maths

JEE Main Chapter wise Weightage Physics (2020-2019)

Also Check:

• JEE Main Chapter-wise PYQs for Physics, Chemistry and Mathematics
• JEE Main B.Arch & B.Plan Question Papers PDF

JEE Main Chapter wise Weightage Chemistry (2020-2019)

JEE Main Chapter wise Weightage Maths (2020-2019)

JEE Main Class 11 and 12 Weightage

Class 12th weightage in JEE Main Question Paper is usually higher than that of Class 11th weightage. To help candidates know the class-wise syllabus weightage of 11th and 12th in JEE Main over the years, the table below covers subject-wise percentage-

Important Formulas for JEE Main 2024

Physics

• The energy of electric dipole is given by U = – p.E.
• The energy of a magnetic dipole is U = – μ .B C.
• Electric Charge : Q = ± ne (e = 1.60218 × 10-29 C)
• SI unit of Electric Charge is Coulomb (C)
• Coulomb’s Law : Electrostatic Force (F) = k[q1q2/r2] and,
• In Vector Form :
  • →F=k(q1q2)×→r/r3
    • Where, q1 and q2 = Charges on the Particle,
    • r = Separation between them,
    • →r = Position Vector,
    • k = Constant = 14πϵ0=8.98755×109Nm2C2
• Electric Current :
  • The current at Time t : i=limΔt→0 ΔQ/Δt= dQ/dT
    • Where Δ Q and Δ T = Charges crosses an Area in time Δ T
    • SI unit of Current is Ampere (A) and 1A = 1 C/s
• Average current density:
  • →j=Δi/Δs
  • j=limΔs→0 Δi/Δs=di/dS ,
  • j=Δi/ΔScosθ
    • Where, Δ S = Small Area,
    • Δ i = Current through the Area Δ S,
    • P = Perpendicular to the flow of Charges,
    • θ = Angle Between the normal to the Area and the direction of the current.
• Kirchhoff’s Law:
  • Law of Conservation of Charge: I3 = I1 + I2

• Resistivity : ρ(T)=ρ(T0)[1+α(T−T0)]
  • R (T) =R (T0) [1+α (T−T0)]
    • Where, ρ (T) and ρ (T0) = Resistivity at Temperature T and T0 respectively,
    • α = Constant for given material.

• Lorentz Force :
  • →F=q[→E+(→v×→B)]
    • Where, E = Electric Field,
    • B = Magnetic Field,
    • q = Charge of Particle,
    • v = Velocity of Particle.
• Magnetic Flux:
  • Magnetic Flux through Area dS = ϕ=→B⋅d → S= B⋅dS Cos θ
    • Where, d→S = Perpendicular vector to the surface and has a magnitude equal to are Ds,
    • →B = Magnetic Field at an element,
    • θ = Angle Between →B and d→S,
    • SI unit of Magnetic Flux is Weber (Wb).
• Straight line Equation of Motion (Constant Acceleration):
  • v=u+at
  • s=ut+1/2at2
  • 2as=v2−u2
• Gravitational Acceleration Equation of Motion:
  • Motion in Upward Direction:
    • v= u-gt
    • y=ut−1/2gt2
    • −2gy=v2−u2
  • Motion in Downward Direction:
    • v=u+gt
    • y=ut+1/2gt2
    • 2gy=v2−u2
• Projectile Equation of Motion:
  • Horizontal Range (R) = u2sin2θ/ g
  • Time of Flight (T) = 2uSinθ/ g
  • Maximum Height (H) = u2sin2θ/ 2
  • Where,
    • u = initial velocity,
    • v = final velocity,
    • a = constant acceleration,
    • t = time,
    • x = position of particle.

• Universal Law of Gravitation:
  • Gravitational force →F=G[Mm/r2]^r
  • Where, M and m = Mass of two Objects,
    • r = separation between the objects,
    • ^r = unit vector joining two objects,
    • G = Universal Gravitational Constant
      • [G=6.67×10−11N⋅m2/Kg2]
• Work Done by Constant Force:
  • Work Done (W) = →F⋅→S=∣→F∣ ∣→S∣ cosθ,
    • Where, S = Displacement along a straight line,
    • F = applied force,
    • θ = Angle between S & F.
  • It is a scalar quantity and the Dimension of work is [M1 L2 T-2], SI unit of Work is the joule (J) and 1J=1N⋅m=Kg⋅m2/ s2
• Kinetic Friction:
  • fk = µk · N
  • Maximum Static Friction (Limiting Friction): fmax = µs · N,
    • Where, N = Normal Force,
    • µk = Coefficient of Kinetic Friction,
    • µs = Coefficient of Static Friction.
• Simple Harmonic Motion:
  • Force (F) = – k x and k = ω2 m
    • Where, k = Force Constant,
    • m = Mass of the Particle,
    • x = Displacement and ω2 = Positive Constant.
• Torque: The torque or vector moment or moment vector (M) of a force (F) about a point (P) is defined as:
  • M = r×F
  • Where, r is the vector from the point P to any point A on the line of action L of F.

Chemistry

• T(K)= T(⁰C) + 273.15
• Molarity (M)= No. of Moles of Solutes/ Volume of Solution in Liters
• Unit: mole/ L
• Molality (m)=
  • No. of Moles of Solutes/ Mass of solvent in kg
• Molecular Mass= 2x vapor density
• Atomic number=
  • No. of protons in the nucleus = No. of electrons in the nucleus
• Mass number=
  • No. of protons + No. of neutrons C= vλ
• Boyle’s Law:
  • P1V1 = P2V2 (at constant T and n)
• Charles’s Law:
  • V1/ T1 = V2/ T2 (at constant P and n)
• Enthalpy:
  • H = U + pV
• First Law of Thermodynamics:
  • ΔU = q + W
• Ohm’s Law:
  • V = RI where, R = ρ ι/a

• Faraday’s First Law of Electrolysis:
  • M = Zit
    • M = mass of substance deposited
    • Z= Electrochemical Equivalent
    • I = current,
    • t= time
    • Z= Atomic Mass/ n x F
• Faraday’s Second Law of Electrolysis:
  • M1/ M2 = E1/E2 ,
    • Where E = equivalent weight
• Freundlich Adsorption Isotherm:
  •  [x/m]-Kp (1/n); n>=1
• General Electronic Configuration:
  • ns1-2

Mathematics

The general form of Complex numbers x + i where ‘x’ is Real part and ‘i’ is an Imaginary part.

• Sum of nth root of unity is zero
• Product of nth root of unity (–1)n–1
• Cube roots of unity are 1, ω, ω2
  • |z1+z2|<=|z1|+|z2|; |z1+z2|>=|z1|-|z2|; |z1-z2|>=|z1|-|z2|
• If three complex numbers z1, z2, z3 are collinear then,
  • [z1 z1 1
  • z2 z2 1
  • z3 z3 1] = 0

• If ΣCosα = ΣSinα = 0, ΣCos2α = ΣSin2α = 0,
• ΣCos2nα = ΣSin2nα = 0,
• ΣCos2α = ΣSin2α = 3/2
• ΣCos3α = 3Cos(α + β + γ),
• ΣSin3α = 3Sin(α + β + γ)
• ΣCos(2α – β – γ) = 3,
• ΣSin(2α – β – γ) = 0,
• a^3 + b^3 + c^3 – 3abc = (a + b + c) (a + bω + cω^2) (a + bω^2 + cω)

• Standard form of Quadratic equation
  • ax^2 + bx + c = 0
  • Sum of roots = -b/a,
  • Product of roots discriminate = b^2 – 4ac
  • If α, β are roots then Quadratic equation is x^2 – x(α + β) + αβ = 0
  • Number of terms in the expansion: (x+a)n is n+1
    • Any three non coplanar vectors are linearly independent
  • A system of vectors ā1, ā2,….ān are said to be linearly dependent,
    • If there, x1ā1+x2ā2+….+xnan=0
    • At least one of xi ≠0, i=1, 2, 3….n
    • And determinant = 0
  • a,b,c are coplanar then [abc]=0
  • If i,j,k are unit vectors then [i j k] = 1
  • If a,b,c are vectors then [a+b, b+c, c+a] = 2[abc]
  • (1 + x)n – 1 is divisible by x and (1 + x)n – nx –1 is divisible by x2
  • If nCr-1, nCr, nCr+1 are in A.P, then (n–2r)2 = n + 2

• Integration Formulas for JEE Main
  • ∫xn dx = \frac{x^{n+1}}{n+1}+cn+1xn+1+c , n ≠ -1
  • \int \frac{1}{x}\: dx = \log_{e}\left | x \right |+c∫x1dx=loge∣x∣+c
  • ∫e^x dx = e^x+c
  • ∫a^x dx = \frac{a^{x}}{\log_{e}a}+clogeaax+c
  • ∫ sin x dx = -cos x + c
  • ∫ cos x dx = sin x + c
  • ∫ sec² x dx = tan x + c
  • ∫ cosec² x dx = -cot x + c
  • ∫ sec x tan x dx = sec x + c
  • ∫ cosec x cot x dx = – cosec x + c
  • ∫ cot x dx = \log \left | \sin x \right |+clog∣sinx∣+c
  • ∫ tan x dx = -\log \left | \\cos \: x \right |+c−log∣cosx∣+c
  • ∫ sec x dx = log \left | \\sec \: x + tan \: x\right |+c∣secx+tanx∣+c
  • ∫ cosec x dx = log \left | \\cosec \: x – \cot \: x\right |+c∣cosecx–cotx∣+c
  • \int \frac{1}{\sqrt{a^{2}-x^{2}}} \; dx = \sin ^{-1}(\frac{x}{a})+c∫a2−x21dx=sin−1(ax)+c
  • \int -\frac{1}{\sqrt{a^{2}-x^{2}}} \; dx = \cos ^{-1}(\frac{x}{a})+c∫−a2−x21dx=cos−1(ax)+c
  • \int \frac{1}{{a^{2}+x^{2}}} \; dx = \frac{1}{a}\tan ^{-1}(\frac{x}{a})+c∫a2+x21dx=a1tan−1(ax)+c
  • \int -\frac{1}{{a^{2}+x^{2}}} \; dx = \frac{1}{a}\cot ^{-1}(\frac{x}{a})+c∫−a2+x21dx=a1cot−1(ax)+c
  • \int \frac{1}{x\sqrt{x^{2}-a^{2}}}\; dx = \frac{1}{a}\sec ^{-1}(\frac{x}{a})+c∫xx2−a21dx=a1sec−1(ax)+c
  • \int -\frac{1}{x\sqrt{x^{2}-a^{2}}}\; dx = \frac{1}{a}\: cosec ^{-1}\left ( \frac{x}{a} \right )+c∫−xx2−a21dx=a1cosec−1(ax)+c