JEE Mains 2026 6 April Morning Shift physics questions with solutions

Showing 1–10 of 25 questions

• MCQeasyAtomic Structure and X-raysatomic structure and bohr atomic model

  Q44. Let p₁ and p₂ be the momenta of photons corresponding to the first and second lines, respectively, of the Balmer series of hydrogen. If p₁/p₂ = α/β, which pair of values of α and β is correct?

  Options

  • Option A

    α = 27, β = 20

  • Option B

    α = 3, β = 16

  • Option C

    α = 5, β = 36

  • Option D

    α = 20, β = 27

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• MCQeasyThermodynamicskinetic therory of gaseous

  Two closed vessels of equal volume are connected by a narrow tube. Initially, both contain air at pressure 90 kPa and temperature 400 K. The temperature of one vessel is maintained at 400 K, while the temperature of the other is raised to 500 K. After equilibrium is established, both vessels have the same final pressure. What is this pressure?

  Options

  • Option A

    100 kPa

  • Option B

    120 kPa

  • Option C

    90 kPa

  • Option D

    105 kPa

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• NumericeasyWave Opticspolarisation

  Unpolarized light of intensity I₀ passes through a polarizer, then through an optically active solution, and finally through an analyser. The transmission axes of the polarizer and analyser are parallel. The intensity emerging from the analyser is 3I₀/8. If the solution rotates the plane of polarization by θ relative to the analyser axis, find θ in degrees.

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• MCQeasyProperties of solid and fluidpropertes of solid stress ,strain and modulus of elasticity

  A lift of mass 1600 kg is supported by a thick iron wire of radius 4 mm. The maximum tensile stress that the wire can withstand is 4×10⁸ N·m⁻². Taking g = 10 m·s⁻² and π = 3.14, what is the maximum upward acceleration that the lift can have without exceeding the stress limit?

  Options

  • Option A

    2.56 m·s⁻²

  • Option B

    3.89 m·s⁻²

  • Option C

    4.32 m·s⁻²

  • Option D

    5.16 m·s⁻²

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• MCQeasyWave Opticsinterferece of light and huygen principle

  In a two-wave interference experiment, the path difference between the coherent waves at point A is λ/3, while at point B it is λ/6. Using the equal-intensity condition employed in the given solution, what is the ratio of the resultant intensities $I_{A}$/$I_{B}$?

  Options

  • Option A

    3

  • Option B

    4

  • Option C

    1/3

  • Option D

    1/4

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

  Q45. A series LCR circuit is driven by an rms voltage of 90 V at frequency 30 Hz. At this frequency the circuit has resistance R = 80 Ω, inductive reactance $X_{L}$= 20 Ω and capacitive reactance $X_{C}$ = 80 Ω. What is the power factor of the circuit?

  Options

  • Option A

    0.80

  • Option B

    0.64

  • Option C

    0.90

  • Option D

    0.50

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• MCQeasyWork , Power and Energykinetic enegy and work engery theorem

  A raindrop of mass 1 g starts from rest at a height of 1 km above the ground. It reaches the ground with a speed of 5 m·s⁻¹. Taking g = 10 m·s⁻², what is the work done by the unknown resistive force during the fall?

  Options

  • Option A

    -8.75 J

  • Option B

    -8.35 J

  • Option C

    -9.55 J

  • Option D

    -9.98 J

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• MCQeasySimple Harmonic Motiondisplacement ,velocity and acceleration ,phasor diagram

  A particle executes simple harmonic motion with amplitude A and time period 5 s. Starting from the positive extreme position x = A, how much time does it take to reach x = A/√2 for the first time?

  Options

  • Option A

    1/4 s

  • Option B

    5/4 s

  • Option C

    5/8 s

  • Option D

    3/8 s

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• MCQeasyElectrostaticElectric field intensity

  A thin semicircular ring of radius 35 cm carries a uniformly distributed total charge Q. The magnitude of the electric field at the centre of the semicircle is 100 V·m⁻¹. Taking ε₀ = 8.85×10⁻¹² C²·N⁻¹·m⁻² and π = 3.14, what is Q in nanocoulombs?

  Options

  • Option A

    2.14 nC

  • Option B

    2.44 nC

  • Option C

    3.25 nC

  • Option D

    0.70 nC

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• MCQmediumGeometrical opticsrefraction due to curved surface

  Q41. A spherical refracting interface of radius R separates media of refractive indices n₁ = 1 and n₂ = 1.4, as shown in the figure. A point object is placed 4R in front of the interface in the n₁ medium. What is the magnitude of the lateral magnification of the image formed by the spherical interface?

  

  Options

  • Option A

    1.66

  • Option B

    2.33

  • Option C

    2.66

  • Option D

    1.33

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