JEE Mains 2024 09 Apr Morning Shift physics questions with solutions

Showing 1–10 of 30 questions

• MCQmediumElectromagnetic wavedisplacement current and properties of electromagnetic wave

  A plane EM wave is propagating along x direction. It has a wavelength of 4 mm. If electric field is in y direction with the maximum magnitude of 60 V m⁻¹, the equation for magnetic field is:

  Options

  • Option A

    B(z) = 60 sin[(π/2)(x - 3 × 10⁸t)] k̂ T

  • Option B

    B(z) = 2 × 10⁻⁷ sin[(π/2) × 10³(x - 3 × 10⁸t)] k̂ T

  • Option C

    B(x) = 60 sin[(π/2)(x - 3 × 10⁸t)] î T

  • Option D

    B(z) = 2 × 10⁻⁷ sin[(π/2)(x - 3 × 10⁸t)] k̂ T

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• MCQmediumCurrent electricityEquivalent Resistance & Networks

  The equivalent resistance between A and B is:

  

  Options

  • Option A

    18 Ω

  • Option B

    25 Ω

  • Option C

    27 Ω

  • Option D

    19 Ω

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• MCQmediumThermodynamicsthermodynmic process and work done

  A sample of 1 mole gas at temperature T is adiabatically expanded to double its volume. If adiabatic constant for the gas is γ = 3/2, then the work done by the gas in the process is:

  Options

  • Option A

    RT(2 - √2)

  • Option B

    (R/T)(2 - √2)

  • Option C

    RT(2 + √2)

  • Option D

    (T/R)(2 + √2)

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• NumericmediumAC Circuitsseries combination of ac circuit and L-C-R circuit

  When a coil is connected across a 20 V dc supply, it draws a current of 5 A. When it is connected across 20 V, 50 Hz ac supply, it draws a current of 4 A. The self inductance of the coil is ______ mH. (Take π = 3)

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• MCQeasyPhotoelectric effect and dual nature of matterdebroglie duel nature of light

  A proton, an electron and an alpha particle have the same energies. Their de-Broglie wavelengths will be compared as:

  Options

  • Option A

    λₑ > λα > λₚ

  • Option B

    λα < λₚ < λₑ

  • Option C

    λₚ < λₑ < λα

  • Option D

    λₚ > λₑ > λα

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• MCQmediumNuclear physicsNucles and its density radius and mass defect ,binding energy and its curve

  The energy equivalent of 1 g of substance is:

  Options

  • Option A

    11.2 × 10²⁴ MeV

  • Option B

    5.6 × 10¹² MeV

  • Option C

    5.6 eV

  • Option D

    5.6 × 10²⁶ MeV

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• NumericmediumWave OpticsYoung's Double Slit Experiment

  In a Young's double slit experiment, the intensity at a point is 1/4th of the maximum intensity, the minimum distance of the point from the central maximum is ________ μm. (Given: λ = 600 nm, d = 1.0 mm, D = 1.0 m)

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• NumericeasyProperties of solid and fluidproperties of solid stress ,strain and modulus of elasticity

  Two persons pull a wire towards themselves. Each person exerts a force of 200 N on the wire. Young's modulus of the material of wire is 1 × 10¹¹ N m⁻². Original length of the wire is 2 m and the area of cross section is 2 cm². The wire will extend in length by ______ μm.

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• MCQeasyAC Circuitsseries combination of ac circuit and L-C-R circuit

  A bulb and a capacitor are connected in series across an ac supply. A dielectric is then placed between the plates of the capacitor. The glow of the bulb:

  Options

  • Option A

    increases

  • Option B

    remains same

  • Option C

    becomes zero

  • Option D

    decreases

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• MCQeasyUnit dimension and errorDimension and its application

  The dimensional formula of latent heat is:

  Options

  • Option A

    [M⁰LT⁻²]

  • Option B

    [MLT⁻²]

  • Option C

    [M⁰L²T⁻²]

  • Option D

    [ML²T⁻²]

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