JEE Mains 2024 29 Jan Morning Shift physics questions with solutions

Showing 1–10 of 30 questions

• MCQeasyWork , Power and EnergyWork Done by Forces

  A block of mass 100 kg slides over a distance of 10 m on a horizontal surface. If the co-efficient of friction between the surfaces is 0.4, then the work done against friction (in J) is :

  Options

  • Option A

    4200

  • Option B

    3900

  • Option C

    4000

  • Option D

    4500

  Check answerShow answer

  JEE Mains 2024 29 Jan Morning Shift

  Open question & full solution →
• MCQmediumElectromagnetic InductionMutual Inductance, L-C Oscillations and Transformers

  A capacitor of capacitance 100 μF is charged to a potential of 12 V and connected to a 6.4 mH inductor to produce oscillations. The maximum current in the circuit would be :

  Options

  • Option A

    3.2 A

  • Option B

    1.5 A

  • Option C

    2.0 A

  • Option D

    1.2 A

  Check answerShow answer

  JEE Mains 2024 29 Jan Morning Shift

  Open question & full solution →
• NumericeasySimple Harmonic MotionKinetic Energy, Potential Energy and Conservation of Energy in SHM

  When the displacement of a simple harmonic oscillator is one third of its amplitude, the ratio of total energy to the kinetic energy is x/8, where x = _________.

  Your answer

  Check answerShow answer

  JEE Mains 2024 29 Jan Morning Shift

  Open question & full solution →
• MCQmediumElectromagnetic waveDisplacement Current, Maxwell's Equations and Properties of Electromagnetic Waves

  Match List I with List II

  List I
  A. ∮B.dl = μ₀i(c) + μ₀ε₀(dΦ(E)/dt)
  B. ∮E.dl = -dΦ(B)/dt
  C. ∮E.dA = Q/ε₀
  D. ∮B.dA= 0

  List II I. Gauss’ law for electricity II. Gauss' law for magnetism III. Faraday law IV. Ampere – Maxwell law

  Chose the correct answer from the options given below

  Options

  • Option A

    A-IV, B-I, C-III, D-II

  • Option B

    A-II, B-III, C-I, D-IV

  • Option C

    A-IV, B-III, C-I, D-II

  • Option D

    A-I, B-II, C-III, D-IV

  Check answerShow answer

  JEE Mains 2024 29 Jan Morning Shift

  Open question & full solution →
• NumericmediumCapacitorRC Circuits: Charging & Discharging

  A 16 Ω wire is bend to form a square loop. A 9V battery with internal resistance 1 Ω is connected across one of its sides. If a 4 μF capacitor is connected across one of its diagonals, the energy stored by the capacitor will be x/2 μJ. where x = _________.

  Your answer

  Check answerShow answer

  JEE Mains 2024 29 Jan Morning Shift

  Open question & full solution →
• NumericmediumElectromagnetic InductionMagnetic Flux,Faraday's Laws of Electromagnetic Induction and Lenz's Law

  A square loop of side 10 cm and resistance 0.7 Ω is placed vertically in east-west plane. A uniform magnetic field of 0.20 T is set up across the plane in north east direction. The magnetic field is decreased to zero in 1 s at a steady rate. Then, magnitude of induced emf is √x × 10⁻³ V. The value of x is ________.

  Your answer

  Check answerShow answer

  JEE Mains 2024 29 Jan Morning Shift

  Open question & full solution →
• MCQmediumGeometrical opticsLenses, Lens Combinations & Silvered Lenses

  A biconvex lens of refractive index 1.5 has a focal length of 20 cm in air. Its focal length when immersed in a liquid of refractive index 1.6 will be:

  Options

  • Option A

    -16 cm

  • Option B

    -160 cm

  • Option C

    +160 cm

  • Option D

    +16 cm

  Check answerShow answer

  JEE Mains 2024 29 Jan Morning Shift

  Open question & full solution →
• NumericmediumKinematics part-2 Projectile MotionProjectile from height

  A ball rolls off the top of a stairway with horizontal velocity u. The steps are 0.1 m high and 0.1 m wide. The minimum velocity u with which that ball just hits the step 5 of the stairway will be √x ms⁻¹ where x = ___________ [use g = 10 m/s²].

  Your answer

  Check answerShow answer

  JEE Mains 2024 29 Jan Morning Shift

  Open question & full solution →
• NumericmediumElectrostaticElectric Flux & Gauss’s Law

  An electron is moving under the influence of the electric field of a uniformly charged infinite plane sheet S having surface charge density +σ. The electron at t = 0 is at a distance of 1 m from S and has a speed of 1 m/s. The maximum value of σ if the electron strikes S at t = 1 s is α[mₑε₀/e] C/m² the value of α is

  Your answer

  Check answerShow answer

  JEE Mains 2024 29 Jan Morning Shift

  Open question & full solution →
• MCQeasyElectrostaticElectric Flux & Gauss’s Law

  Two charges of 5Q and -2Q are situated at the points (3a, 0) and (-5a, 0) respectively. The electric flux through a sphere of radius '4a' having center at origin is :

  Options

  • Option A

    2Q/ε₀

  • Option B

    5Q/ε₀

  • Option C

    7Q/ε₀

  • Option D

    3Q/ε₀

  Check answerShow answer

  JEE Mains 2024 29 Jan Morning Shift

  Open question & full solution →