JEE Mains 2024 06 Apr Morning Shift physics questions with solutions

Showing 1–10 of 30 questions

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

  Radius of a certain orbit of hydrogen atom is 8.48 Å. If energy of electron in this orbit is E/x, then x = _________. (Given a₀ = 0.529 Å, E = energy of electron in ground state)

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• MCQeasyWork , Power and EnergyKinetic Energy & Work-Energy Theorem

  Four particles A, B, C, D of mass m/2, m, 2m, 4m, have same momentum, respectively. The particle with maximum kinetic energy is :

  Options

  • Option A

    D

  • Option B

    C

  • Option C

    A

  • Option D

    B

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• NumericeasySimple Harmonic MotionDisplacement, Velocity, Acceleration and Phasor Representation in SHM

  A particle is doing simple harmonic motion of amplitude 0.06 m and time period 3.14 s. The maximum velocity of the particle is _______ cm/s.

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• NumericmediumGravitationAcceleration Due to Gravity & Escape Velocity

  If the radius of earth is reduced to three-fourth of its present value without change in its mass then value of duration of the day of earth will be ______ hours 30 minutes.

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• MCQmediumsemiconductorLogic Gates & Boolean Operations

  The correct truth table for the following logic circuit is :

  

  Options

  • Option A

    A B Y

    0 0 0

    0 1 1

    1 0 0

    1 1 1

  • Option B

    A B Y

    0 0 1

    0 1 1

    1 0 0

    1 1 1

  • Option C

    A B Y

    0 0 1

    0 1 1

    1 0 0

    1 1 0

  • Option D

    A B Y

    0 0 0

    0 1 0

    1 0 0

    1 1 1

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• MCQeasyPhotoelectric effect and dual naturePhotoelectric Effect & Einstein's Equation

  In photoelectric experiment energy of 2.48 eV irradiates a photo sensitive material. The stopping potential was measured to be 0.5 V. Work function of the photo sensitive material is :

  Options

  • Option A

    0.5 eV

  • Option B

    1.68 eV

  • Option C

    2.48 eV

  • Option D

    1.98 eV

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• MCQmediumMagnetic effect of currentBiot-Savart Law and Magnetic Field Due to Straight Wires, Circular Arcs and Loops

  An element Δℓ = Δx î is placed at the origin and carries a large current I = 10 A. The magnetic field on the y-axis at a distance of 0.5 m from the element Δx of 1 cm length is :

  

  Options

  • Option A

    4 × 10⁻⁸ T

  • Option B

    8 × 10⁻⁸ T

  • Option C

    12 × 10⁻⁸ T

  • Option D

    10 × 10⁻⁸ T

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• MCQmediumUnits, Dimensions, Measurements and ErrorsErrors in Measurement and Error Propagation

  To find the spring constant (k) of a spring experimentally, a student commits 2% positive error in the measurement of time and 1% negative error in measurement of mass. The percentage error in determining value of k is :

  Options

  • Option A

    3%

  • Option B

    1%

  • Option C

    4%

  • Option D

    5%

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• NumericmediumMagnetic effect of currentMagnetic Dipole Moment, Torque and Equilibrium of Current-Carrying Loops

  A circular coil having 200 turns, 2.5 × 10⁻⁴ m² area and carrying 100 μA current is placed in a uniform magnetic field of 1 T. Initially the magnetic dipole moment M was directed along B. Amount of work, required to rotate the coil through 90° from its initial orientation such that M becomes perpendicular to B, is _________ μJ.

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• MCQeasyElectromagnetic waveDisplacement Current, Maxwell's Equations and Properties of Electromagnetic Waves

  Electromagnetic waves travel in a medium with speed of 1.5 × 10⁸ m s⁻¹. The relative permeability of the medium is 2.0. The relative permittivity will be :

  Options

  • Option A

    5

  • Option B

    1

  • Option C

    4

  • Option D

    2

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