JEE Mains 2026 physics questions with solutions

Showing 1–10 of 246 questions

• MCQmediumsemiconductorLogic Gates & Boolean Operations

  The correct truth table for the given input data of the following logic gate is :

  

  Options

  • Option A

    A B C D | Y

    1 1 0 1 | 1

    0 0 1 1 | 0

    1 0 1 0 | 1

    1 1 1 1 | 0

  • Option B

    A B C D | Y

    1 1 0 1 | 1

    0 0 1 1 | 0

    1 0 1 0 | 0

    1 1 1 1 | 1

  • Option C

    A B C D | Y

    1 1 0 1 | 0

    0 0 1 1 | 0

    1 0 1 0 | 1

    1 1 1 1 | 1

  • Option D

    A B C D | Y

    1 1 0 1 | 0

    0 0 1 1 | 1

    1 0 1 0 | 1

    1 1 1 1 | 1

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  JEE Mains 202622 January Evening Shift

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• NumericmediumElectromagnetic InductionSelf-Inductance, Induced EMF and Transient Analysis of L-R Circuits

  Inductance of a coil with 10⁴ turns is 10 mH and it is connected to a dc source of 10 V with internal resistance of 10 Ω. The energy density in the inductor when the current reaches (1/e) of its maximum value is απ × (1/e²) J/m³. The value of α is ___.

  (μ₀ = 4π × 10⁻⁷ Tm/A)

  Your answer

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  JEE Mains 202622 January Morning Shift

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• MCQeasyNuclear physicsNuclear Properties, Mass Defect & Binding Energy

  A nucleus has mass number α and radius $R_{\alpha}$. Another nucleus has mass number β and radius $R_{\beta}$. If β = 8α, then $\frac{R_{\alpha}}{R_{\beta}}$ is :

  Options

  • Option A

    2

  • Option B

    8

  • Option C

    1

  • Option D

    0.5

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  JEE Mains 202628 January Evening Shift

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• MCQmediumWork , Power and EnergyVertical Circular Motion

  In case of vertical circular motion of a particle by a thread of length r if the tension in the thread is zero at an angle 30° shown in figure, the velocity at the bottom point (A) of the circular path is

  (g = gravitational acceleration)

  

  Options

  • Option A

    √(5gr)

  • Option B

    √(7gr/2)

  • Option C

    √(4gr)

  • Option D

    √(5gr/2)

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  JEE Mains 202624 January Evening Shift

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• MCQmediumsemiconductorLogic Gates & Boolean Operations

  For the given logic gate circuit, which of the following is the correct truth table?

  

  Options

  • Option A

    n m z

    0 0 1

    0 1 0

    1 1 0

    1 0 0

  • Option B

    n m z

    0 0 0

    0 1 1

    1 1 0

    1 0 1

  • Option C

    n m z

    0 0 1

    0 1 0

    1 1 1

    1 0 0

  • Option D

    n m z

    0 0 1

    0 1 1

    1 1 0

    1 0 0

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  JEE Mains 202623 January Evening Shift

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• MCQeasyWave MotionStanding Sound Waves, Organ Pipes and Resonance Tubes

  The fifth harmonic of a closed organ pipe is found to be in unison with the first harmonic of an open pipe. The ratio of lengths of closed pipe to that of the open pipe is 5/x. The value of x is______.

  Options

  • Option A

    4

  • Option B

    2

  • Option C

    1

  • Option D

    3

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  JEE Mains 202624 January Evening Shift

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• MCQeasyElectrostaticElectric Field & Superposition Principle

  A simple pendulum has a bob with mass m and charge q. The pendulum string has negligible mass. When a uniform and horizontal electric field E is applied, the tension in the string changes. The final tension in the string, when pendulum attains an equilibrium position is _____.

  (g : acceleration due to gravity)

  Options

  • Option A

    mg - qE

  • Option B

    mg + qE

  • Option C

    √(m²g² + q²E²)

  • Option D

    √(m²g² - q²E²)

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  JEE Mains 202622 January Morning Shift

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• MCQmediumGeometrical opticsLaws of Refraction & Total Internal Reflection

  Consider light travelling from a medium A to medium B separated by a plane interface. If the light undergoes total internal reflection during its travel from medium A to B and the speed of light in media A and B are 2.4 × 10⁸ m/s and 2.7 × 10⁸ m/s respectively, then the value of critical angle is :

  Options

  • Option A

    cot⁻¹(3/√13)

  • Option B

    sin⁻¹(9/8)

  • Option C

    tan⁻¹(8/√17)

  • Option D

    cos⁻¹(8/9)

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  JEE Mains 202623 January Morning Shift

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

  The total length of potentiometer wire AB is 50 cm in the arrangement as shown in figure. If P is the point where the galvanometer shows zero reading then the length AP is ………. cm.

  

  Options

  • Option A

    15

  • Option B

    30

  • Option C

    25

  • Option D

    20

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  JEE Mains 202621 January Evening Shift

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• MCQmediumThermodynamicsThermodynamic Processes, P-V Diagrams and Work Done

  In the following p-V diagram the equation of state along the curved path is given by (V - 2)² = 4ap where a is a constant. The total work done in the closed path is

  

  Options

  • Option A

    -1/a

  • Option B

    +1/(3a)

  • Option C

    1/(2a)

  • Option D

    -1/(3a)

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  JEE Mains 202628 January Morning Shift

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