NEET 2026 (Re-Exam)

151 Questions • 180 Minutes • 2026

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A photon and an electron, each of 20 eV energy, move in free space. The ratio of linear momentum of electron ($p_e$) to that of photon ($p_{Ph}$), $p_e/p_{Ph}$, is: [Take speed of light = $3\times10^8$ m s⁻¹, charge of electron = $-1.6\times10^{-19}$ C and mass of electron = $9\times10^{-31}$ kg]

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Consider a long solenoid of length $l$ and radius $r$. If $n$ is the number of turns per unit length and $\mu_0$ is the permeability of free space, the inductance of the solenoid is :

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The temperature of a metallic sphere of radius R is increased by a small amount ΔT. If the linear coefficient of thermal expansion of the metal is α, the approximate increase in the volume of the sphere is:

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Two planets P₁ and P₂ with equal mass have radii R₁ and R₂, respectively, where R₂ = R₁/2. The escape speeds of P₁ and P₂ are v₁ and v₂, respectively. Then v₂/v₁ is:

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An ac voltage V = 220 sin(2 × 10³ t) Volt is applied to a series LCR circuit. Then the current amplitude in this circuit is: (Given : L = 10 mH, C = 25 μF, R = 100 Ω)

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In an adiabatic expansion, the temperature of one mole of an ideal monatomic gas (γ = 5/3) decreases from 60 K to 50 K. The work done by the gas in the process is: (Take the universal gas constant as R = 8.3 J mol⁻¹ K⁻¹)

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Consider a particle moving along a straight line, whose position as a function of time is given by $s(t)=\alpha t^2-\beta t+\gamma$, where α = 1 m s⁻², β = 6 m s⁻¹ and γ = 5 m. The average speed of the particle, in m s⁻¹ from t = 0 to t = 6 s is:

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The following table presents the part of the electromagnetic spectrum and their corresponding major applications. [table] Part of the electromagnetic spectrum | Applications ; P. Microwave | I. For purifying the water ; Q. UV rays | II. For warming the food ; R. Gamma rays | III. For AM and FM communication systems ; S. Radio wave | IV. For treating the Cancer cells [/table] The correct option is:

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An ideal gas is made of polyatomic molecules. Each of the molecules has three translational, three rotational and f number of vibrational modes. If the ratio of heat capacities $C_P/C_V$ of the gas is 8/7, then the value of f is:

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An electromagnetic wave travelling in a lossless dielectric medium having a dielectric constant, εᵣ = 9, has the electric field, $E_x=E_0\sin(kz-2\pi\times10^6t)$ V m⁻¹ where $E_0$ is the amplitude and k is the wave vector. Among the following options, the incorrect choice is

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A particle of mass M moves along a horizontal x axis from x = 0 to x = L. The coefficient of kinetic friction varies as a function of x as $\mu_k(x)=\mu_0-\alpha x$, where μ₀, α are constants of appropriate dimensions, so that $\mu_k(L)=0$. The total work done by the frictional force during the motion is $n\mu_0MgL$, where g is the acceleration due to gravity. The value of n is:

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Consider a fixed uniformly charged insulating sphere with radius R and total charge +Q. A point charge −q (q ≪ Q) with mass m is released from rest at a distance of 3R from the centre of the charged sphere. When the point charge reaches the surface of the sphere, its speed is: (ε₀ is the permittivity of vacuum, neglect gravitational forces).

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A car travels on a circular racetrack of radius 50 m, which is banked at an angle θ. If the car travels at a speed 10 m s⁻¹, then the wear and tear on its tyres is minimum. Taking the acceleration due to gravity to be 10 m s⁻², the value of θ is:

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A solid sphere A of radius R and mass M is attached at a point to a smaller solid sphere B of radius r < R and mass m < M. Assume that the line joining their centres lies along the horizontal. The moment of inertia of the system calculated about a vertical axis passing through the centre of A is $I_A$ and that about a vertical axis passing through the centre of B is $I_B$. The difference $I_A-I_B$ is:

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Consider that an electron is revolving in an excited state of Hydrogen atom with velocity $\sqrt{25.6}\times10^5$ m s⁻¹. The radius of the orbit is $x\times10^{-9}$ m. The value of x is: [Take the mass of electron to be $9\times10^{-31}$ kg, charge of electron = $-1.6\times10^{-19}$ C and $\frac{1}{4\pi\varepsilon_0}=9\times10^9$ N m² C⁻²]

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The mean free path of molecules in an ideal gas A is half that of another ideal gas B. The diameter of the spherical molecules of gas A is twice the diameter of the molecules of B. If number densities of the gases A and B are $n_A$ and $n_B$, respectively, the correct option is:

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A cylindrical cork of uniform density floats in a liquid of density ρ₁. If the cork is depressed slightly and released, it oscillates harmonically with time period T. If the same cork floats in another liquid of density ρ₂, then the similar oscillation has time period 2T. The value of ρ₂/ρ₁ is:

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For sound waves, if the number of nodes for the 5ᵗʰ harmonic of an open-ended pipe is n and that for the 9ᵗʰ harmonic of the same pipe with one of its ends closed is m, the ratio n/m is

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Consider the following nuclear reaction $^{238}U\rightarrow{}^{234}Th+{}^{4}He$ Take masses of ²³⁸U, ²³⁴Th and ⁴He as 238.050 u, 234.043 u and 4.003 u, respectively. The Q value for the reaction, in keV, is: [Given: 1 u = 931.5 MeV c⁻²]

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Which of the following measurements require 'index correction'?

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Paper Info

Exam: NEET
Year: 2026
Questions: 151
Duration: 180 mins

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