JEE mains physics questions with solutions

Showing 1–10 of 6960 questions

• IntegermediumMathematical tools and vectorCoordinate Geometry

  Two particles are located at A(2, 3) and B(8, 11). Find the distance between them.

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• MCQeasyMagnetic effect of current

  If a solution of ferromagnetic material is poured into a U-tube and one arm of this is placed between the poles of a strong magnet with the meniscus in line with the field, then the level of the solution will:

  Options

  • Option A

    Rise

  • Option B

    Fall

  • Option C

    Rise till the liquid comes out

  • Option D

    Remain unchanged

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• MCQmediumMagnetic effect of current

  A conducting rod of length L is hanging from ceiling with help of two light metallic threads as shown. There is some potential difference between A and D so that some current flows in the rod. When displaced perpendicular to plane of diagram slightly, the system oscillates with time period T. Now magnetic field B perpendicular to plane of diagram is switched on. The time period of oscillation now becomes 2 T . The magnitude of current flowing through rod is. (The magnetic field cuts through the rod only and not the threads)

  

  Options

  • Option A

    mg/(BL)

  • Option B

    mg/(2BL)

  • Option C

    2mg/(BL)

  • Option D

    √2mg/(BL)

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• IntegermediumNewtons law of motion and FrictionNewton's Second Law & Applications

  A bullet of mass 0.1 kg enters a wooden block at 10 m s⁻¹ and stops after penetrating 0.50 m under uniform deceleration. Find the magnitude of the retarding force in newtons.

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• IntegermediumKinematics part-2 Projectile MotionMotion in 2-D and ground to ground projectile

  The equation of a projectile is y = √3x - gx²/2. At t = 0, x = 0, y = 0 and dx/dt ≠ 0. Find the angle of projection (degrees).

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• Multi-correctmediumFluid MechanicsPascal's Law, Buoyant Force and Archimedes' Principle

  Which statements concerning Pascal's law and an ideal hydraulic machine are correct?

  Select all that apply

  • Option A

    An externally applied pressure change is transmitted throughout a confined fluid.

  • Option B

    A hydraulic lift can multiply force.

  • Option C

    If the smaller piston has the smaller area, it must move through a larger distance than the larger piston for the same displaced liquid volume.

  • Option D

    Hydraulic braking systems are applications of Pascal's law.

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• NumericmediumGeometrical opticsSpherical Mirrors & Image Formation

  For the same fully specified condition: a concave mirror has magnification -3, then after a 10 cm outward object shift magnification -2. Find the initial image distance magnitude in centimetres.

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• NumericmediumWave OpticsYoung's Double-Slit Experiment (YDSE)

  A beam of light consisting of wavelengths 7000 Å and 5500 Å is used in Young's double slit experiment. Slit separation is 2.5 mm and screen distance is 150 cm. The least distance from the central fringe where bright fringes of both wavelengths coincide is n × 10⁻⁵ m. Find n.

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• MCQmediumCircular MotionKinematics of Circular Motion

  A particle moves on a circle of radius 2 m with speed v = 2t² m/s. At t = 1 s, the angle φ between tangential acceleration and net acceleration satisfies:

  Options

  • Option A

    tanφ = 1/4

  • Option B

    tanφ = 1/2

  • Option C

    tanφ = 2

  • Option D

    tanφ = 4

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• MCQeasyMagnetism and matterMagnetic Dipole in a Uniform Magnetic Field: Torque, Potential Energy and Oscillations

  A magnetic dipole executes angular motion in a uniform magnetic field. It is released from rest from an initial angular displacement θ₀ from the stable equilibrium position.

  Which statement is correct?

  Options

  • Option A

    The motion is exactly SHM for every θ₀

  • Option B

    The motion is SHM only for sufficiently small θ₀

  • Option C

    Its exact time period is independent of amplitude

  • Option D

    The restoring torque is exactly proportional to θ for all θ

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