JEE Mains 2024 06 Apr Evening Shift physics questions with solutions

Showing 1–10 of 30 questions

• MCQmediumElectromagnetic wavedisplacement current and properties of electromagnetic wave

  In the given electromagnetic wave Eᵧ = 600 sin(ωt - kx) V m⁻¹, intensity of the associated light beam is (in W/m²); (Given ε₀ = 9 × 10⁻¹² C² N⁻¹ m⁻²)

  Options

  • Option A

    486

  • Option B

    243

  • Option C

    729

  • Option D

    972

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• MCQeasyUnit dimension and errorError and its addition ,subtraction,multipication and division

  When kinetic energy of a body becomes 36 times of its original value, the percentage increase in the momentum of the body will be :

  Options

  • Option A

    500%

  • Option B

    600%

  • Option C

    6%

  • Option D

    60%

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• NumericeasyCurrent electricityelectric instruments

  In the given figure an ammeter A consists of a 240 Ω coil connected in parallel to a 10 Ω shunt. The reading of the ammeter is ______ mA.

  

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• NumericmediumWave Motionstationary wave in sound and organ pipe ,resonance tube

  Two open organ pipes of length 60 cm and 90 cm resonate at 6th and 5th harmonics respectively. The difference of frequencies for the given modes is _____ Hz. (Velocity of sound in air = 333 m/s)

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• NumericmediumMagnetic effect of currentmabnetic moment and torque on current carring loop in magnetic field

  A coil having 100 turns, area of 5 × 10⁻³ m², carrying current of 1 mA is placed in uniform magnetic field of 0.20 T such a way that plane of coil is perpendicular to the magnetic field. The work done in turning the coil through 90° is _____ μJ.

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• MCQmediumKinematics part-2 Projectile MotionProjectile from height

  A body projected vertically upwards with a certain speed from the top of a tower reaches the ground in t₁. If it is projected vertically downwards from the same point with the same speed, it reaches the ground in t₂. Time required to reach the ground, if it is dropped from the top of the tower, is :

  Options

  • Option A

    √(t₁t₂)

  • Option B

    t₁ - t₂

  • Option C

    t₁/t₂

  • Option D

    t₁ + t₂

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• MCQeasysemiconductorP-N jucntion and diode in reverse and forward bias

  The acceptor level of a p-type semiconductor is 6 eV. The maximum wavelength of light which can create a hole would be : Given hc = 1242 eV nm.

  Options

  • Option A

    407 nm

  • Option B

    414 nm

  • Option C

    207 nm

  • Option D

    103.5 nm

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• MCQmediumElectrostaticsconductor and its properties

  Two identical conducting spheres P and S with charge Q on each, repel each other with a force 16N. A third identical uncharged conducting sphere R is successively brought in contact with the two spheres. The new force of repulsion between P and S is :

  Options

  • Option A

    4 N

  • Option B

    6 N

  • Option C

    1 N

  • Option D

    12 N

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• MCQmediumGeometrical opticslens and combination lens,silvered lens

  For the thin convex lens, the radii of curvature are at 15 cm and 30 cm respectively. The focal length the lens is 20 cm. The refractive index of the material is :

  Options

  • Option A

    1.2

  • Option B

    1.4

  • Option C

    1.5

  • Option D

    1.8

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• NumericmediumAc Cirucuitsseries combination of ac circuit and L-C-R circuit

  For a given series LCR circuit it is found that maximum current is drawn when value of variable capacitance is 2.5 nF. If resistance of 200 Ω and 100 mH inductor is being used in the given circuit. The frequency of ac source is _____ × 10³ Hz. (given π² = 10)

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