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Day 110: JEE Mains Physics

5 questions. Try each one first, then open its answer.

  1. Question 1

    System of Particles and Rotational Motion. This type asked 2 times: 3 Apr 2025, 6 Apr 2026 S2. This one: 6 Apr 2026 S2 See all 2 of this type

    3
    A solid sphere (A) of mass, 5 m and spherical shell (B) of mass mm, both having same radius, are placed on a rough surface. When a force of same magnitude is applied tangentially at the highest points of A and B , they start rolling without slipping with an acceleration of aAa_{A} and aBa_{B}, respectively. The ratio of aAa_{A} and aBa_{B} is ____\_\_\_\_ .

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  2. Question 2

    Current Electricity. This type asked 2 times: 29 Jul 2022, 6 Apr 2026 S1. This one: 6 Apr 2026 S1 See all 2 of this type

    18
    An inductor of inductance 10mH having resistance of 100Ω100\Omega is connected to battery of E.M.F. 1.0 V through a switch as shown in the figure below. After switch is closed, the ratio of instantaneous voltages across the inductor when the current passing through it is 2 mA and 4 mA is ____\_\_\_\_ .

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  3. Question 3

    Electrostatics. This type asked 2 times: 22 Jan 2026 S1, 6 Apr 2026 S1. This one: 6 Apr 2026 S1 See all 2 of this type

    24
    A three coulomb charge moves from the point ( 0,−2,−50, - 2, - 5 ) to the point ( 5,1,25,1,2 ) in an electric field expressed as E→=2xi^+3y2j^+4k^N/C\overrightarrow{E} = 2x\widehat{i} + 3y^{2}\widehat{j} + 4\widehat{k}N/C. The work done in moving the charge is ____\_\_\_\_ J.

  4. Question 4

    System of Particles and Rotational Motion. This type asked 2 times: 2021 Paper 15, 6 Apr 2026 S1. This one: 6 Apr 2026 S1 See all 2 of this type

    6
    A solid sphere of radius 4 cm and mass 5 kg is rotating (rotation axis is passing through the center of the sphere) with an angular velocity of 1200 rpm . It is brought to rest in 10 s by applying a constant torque. The torque applied and the number of rotations it made before it comes to rest are ____\_\_\_\_ and ____\_\_\_\_ respectively.

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  5. Question 5

    Work, Energy and Power. This type asked 2 times: 2021 Paper 24, 6 Apr 2026 S1. This one: 6 Apr 2026 S1 See all 2 of this type

    3
    The rain drop of mass 1 g , starts with zero velocity from a height of 1 km . It hits the ground with a speed of 5 m/s5\text{ }m/s. The work done by the unknown resistive force is ____\_\_\_\_ J . (take g=10 m/s2g = 10\text{ }m/s^{2} )

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