2026 physics questions with solutions

Showing 1–10 of 32 questions

• Multi-correctmediumElectrostaticElectric Potential & Potential Energy

  Two charges Q₁ = q and Q₂ = mq are placed at the points P₁(a,b) and P₂(ma,mb), respectively, in the XY plane, where a,b ≠ 0 and m ≠ 0,1. If V₁ is the potential at a point in the XY plane due to charge Q₁ and V₂ is the potential at that point due to charge Q₂. Correct statement(s) for the points at which |V₁| = |V₂| is/are:

  Select all that apply

  • Option A

    For m = -1, locus of these points is ax + by = 0.

  • Option B

    For m = 2, the locus of these points is a circle of radius (2/3)√(a²+b²) centered at ((2/3)a,(2/3)b).

  • Option C

    For m = -2, the locus of these points is a circle of radius 2√(a²+b²) centered at (2a,2b).

  • Option D

    For m = -3, locus of these points is 3bx + 3ay = 0.

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  JEE Advanced2026Paper 2

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• NumericdifficultCurrent electricityElectrical Instruments: Galvanometer, Ammeter, Voltmeter & Potentiometer

  As shown in the figure, the resistance of a galvanometer G can be found by the half-deflection method. Here the resistance R₂ is adjusted such that when the key K is closed the deflection in the galvanometer becomes half of the value as compared to when K is open. Half-deflection is obtained at R₂ = 4 Ω and thus the galvanometer resistance is found to be 6 Ω. In this half-deflection condition the current (in mA) through the resistor R₁ is:

  

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  JEE Advanced2026Paper 2

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• MatchmediumGeometrical opticsDispersion, Dispersive Power & Prism Combinations

  In List-I, four optical effects are mentioned. The physical phenomena of light which are essential to describe these optical effects are given in List-II. Choose the option which describes the correct match between the entries in List-I to those in List-II.

  List 1

  1. (P) Colorful sky in north polar region (Aurora Borealis)

  2. (Q) Partially polarized sun light

  3. (R) Rainbow

  4. (S) Dark and bright fringes

  5. .

  List 2

  1. (1) Dispersion and reflection

  2. (2) Total internal reflection

  3. (3) Diffraction

  4. (4) Scattering of light by molecules in the atmosphere

  5. (5) Emission of radiation from oxygen and nitrogen atoms excited by charged particles

  Options

  • Option A

    P→5, Q→4, R→1, S→3

  • Option B

    P→4, Q→2, R→1, S→3

  • Option C

    P→4, Q→1, R→2, S→3

  • Option D

    P→5, Q→4, R→1, S→2

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  JEE Advanced2026Paper 1

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• Multi-correctmediumKinematics part-2 Projectile MotionMotion in 2-D and ground to ground projectile

  A particle is thrown with a speed v from a point O at an angle θ with the horizontal plane such that it passes through the point P at a height of 1 m and horizontal distance of 5 m from O, as shown in the figure. If acceleration due to gravity is g m s⁻², then the correct statement(s) is/are:

  

  Select all that apply

  • Option A

    If θ = 45°, then v = 5√g/2 m s⁻¹.

  • Option B

    If θ = 45°, the particle reaches its maximum height before it reaches P.

  • Option C

    If θ = 30°, the particle reaches its maximum height after reaching P.

  • Option D

    If θ = tan⁻¹(1/5), then v = 125√g m s⁻¹.

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  JEE Advanced2026Paper 1

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• MCQmediumRotational MotionCombined Translational & Rotational Motion

  Consider a large disk of radius R and two smaller disks, each of radius r = R/50, lying on its circumference, as shown in the figure. The smaller disks are initially in contact with each other, with an angular separation Δθ between their centers. They are made to roll without slipping in opposite directions, with constant angular velocities ω and 2ω while the large disk is held stationary. The time τ at which the smaller disks are again in contact is: [Use sin(Δθ) = Δθ and ignore gravity.]

  

  Options

  • Option A

    τ = 51(2π - 4/51)/ω

  • Option B

    τ = 51(2π - 2/51)/(3ω)

  • Option C

    τ = 51(2π - 4/51)/(3ω)

  • Option D

    τ = 51(2π - 2/51)/ω

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  JEE Advanced2026Paper 1

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• NumericmediumThermodynamicsFirst Law of Thermodynamics and Its Applications

  As shown in the figure, an insulated container is fitted with a thermally conducting but immovable partition P₁ and a freely movable but thermally insulated piston P₂. The partition P₁ with thermal conductivity K, cross sectional area A and width x divides the container into two sections, S₁ and S₂, each containing one mole of a monoatomic gas. The piston P₂ moves freely such that the gas in S₂ is always at the atmospheric pressure. Initially, the difference between the temperatures of S₁ and S₂ is ΔT₀. The time it takes for the temperature difference to become ΔT₀/2 is nxR/(KA), where R is the universal gas constant. The value of n is: [Given: ln2 ≈ 0.7]

  

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  JEE Advanced2026Paper 1

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• Multi-correctmediumAtomic Structure and X-raysAtomic Structure & Bohr's Atomic Model

  Consider a hydrogen atom with vₖ, rₖ, and Kₖ denoting the velocity, orbital radius and kinetic energy of the electron in the kth orbit, respectively. The electron undergoes a transition from the nth orbit, emitting radiation corresponding to the Lyman series. Considering h to be Planck’s constant and ε₀ the permittivity of free space, the correct statement(s) is/are:

  Select all that apply

  • Option A

    Magnitude of change in kinetic energy of electron can be expressed as (h/4π)|nvₙ/rₙ - v₁/r₁|.

  • Option B

    Magnitude of change in de Broglie wavelength of the electron can be expressed as [e²/(4ε₀)]|1/Kₙ - 1/K₁|.

  • Option C

    Frequency of the radiation emitted can be expressed as [e²/(8πε₀h)](1/r₁ - 1/rₙ).

  • Option D

    Magnitude of change in total energy of the electron can be expressed as (h/2π)|v₁/r₁ - nvₙ/rₙ|.

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  JEE Advanced2026Paper 1

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• Multi-correctmediumGeometrical opticsLenses, Lens Combinations & Silvered Lenses

  A double convex lens made of glass of refractive index 1.5 and radii of curvature of the curved surfaces 20 cm each is immersed in a liquid of refractive index n(L). The correct plot showing the variation of the power, in the units of diopter (D), as a function of n(L) is:

  Select all that apply

  • Option A

    I

    
  • Option B

    
  • Option C

    
  • Option D

    

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  JEE Advanced2026Paper 1

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• ParagraphdifficultCapacitorCapacitors with Dielectrics

  A container of height 2 m, length 2 m and breadth 1 m is made of insulating vertical walls and two large area horizontal metal plates M₁ and M₂ which extend far beyond the vertical walls in all directions. The container is partitioned into two equal chambers with a thin insulating vertical wall. The partition wall contains a small hole of cross-sectional area √10 cm² near its bottom edge. Initially the hole is closed and the left chamber of the container is completely filled with a liquid of dielectric constant ε(r) = 15 and the right chamber is empty, ε(r) = 1. At time t = 0, the hole is opened and the liquid flows from the left chamber to the right chamber. In both the chambers, the space above the liquid has ε(r) = 1 and is maintained at atmospheric pressure. The schematic of the container at a time t > 0 is shown in the figure. [Given: acceleration due to gravity is 10 m s⁻².]

  

  Sub-question 1

  The height (in m) of the liquid in left chamber at t = 500 s is:

  Your answer

  Sub-question 2

  The difference in the capacitance (in F) between the metal plates at t = 0 and that at t = 500 s is (8 - n)ε₀, where ε₀ is the permittivity of free space. The value of n is:

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  JEE Advanced2026Paper 2

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• Multi-correctmediumElectrostaticElectric Dipole & Dipole Moment

  Consider an electric dipole comprising two charges +q and -q each with mass m, separated by a fixed distance d and initially at rest with its dipole moment pointing along î. A uniform electric field Eĵ is turned on at time t = 0 and it is turned off at t = t(f), when the dipole moment makes an angle θ(f) with î. Neglecting any sources of energy loss, correct option(s) is/are:

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  • Option A

    The center of mass of the dipole is deflected towards ĵ in the presence of the field.

  • Option B

    If the magnitude of the final angular velocity ω(f) = √[2qE/(md)], then θ(f) = π/6.

  • Option C

    If θ(f) = π/3, then the change in kinetic energy of the dipole is given by 2√3 qEd.

  • Option D

    For θ(f) = π/4, the dipole rotates around its center of mass with a constant angular velocity after t > t(f).

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  JEE Advanced2026Paper 2

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