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Day 36: JEE Mains Physics

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

  1. Question 1

    Motion in a Plane. This type asked 4 times: 2021 Paper 6, 27 Jan 2024, 24 Jan 2025, 4 Apr 2026 S2. This one: 4 Apr 2026 S2 See all 4 of this type

    4
    If x and y coordinates of a projectile as a function of time (t)(t) are given as 24t24t and 43.6t−4.9t243.6t - 4.9t^{2}, respectively, then the angle (in degrees) made by the projectile with horizontal when t=2 st = 2\text{ }s is ____\_\_\_\_ .

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  2. Question 2

    Motion in a Plane. This type asked 4 times: 26 Jul 2022, 8 Apr 2023, 10 Apr 2023, 4 Apr 2026 S1. This one: 4 Apr 2026 S1 See all 4 of this type

    6
    The two projectiles are projected with the same initial velocities at the 15∘15^{\circ} and 30∘30^{\circ} with respect to the horizontal. The ratio of their ranges is 1:x1:x. The value of xx is

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  3. Question 3

    Work, Energy and Power. This type asked 4 times: 24 Jan 2023, 31 Jan 2024, 7 Apr 2025, 4 Apr 2026 S1. This one: 4 Apr 2026 S1 See all 4 of this type

    24
    A body of mass 2 kg begins to move under the influence of time dependent force F→=\overrightarrow{F} = (2ti^+6t2j^)N\left( 2t\widehat{i} + 6t^{2}\widehat{j} \right)N, where i^\widehat{i} and j^\widehat{j} are unit vectors along xx and y -axis respectively. The power produced by the force at t=2 st = 2\text{ }s is ____\_\_\_\_ W.

  4. Question 4

    Electrostatics. This type asked 4 times: 29 Jan 2024, 1 Feb 2024, 9 Apr 2024, 2 Apr 2026 S2. This one: 2 Apr 2026 S2 See all 4 of this type

    15
    Two-point charges 8μC8\mu C and −2μC- 2\mu C are located at x=2 cmx = 2\text{ }cm and x=4 cmx = 4\text{ }cm, respectively on the x -axis. The ratio of electric flux due to these charges through two spheres of radii 3 cm and 5 cm with their centers at the origin is ____\_\_\_\_ .

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  5. Question 5

    Ray Optics. This type asked 4 times: 26 Jul 2022, 23 Jan 2026 S2, 24 Jan 2026 S1, 2 Apr 2026 S2. This one: 2 Apr 2026 S2 See all 4 of this type

    16
    One side of an equilateral prism is painted by a transparent material of refractive index n2n_{2}. The refractive index of prism is 1.6 . The minimum value of n2n_{2} required for total internal reflection from painted face is ____\_\_\_\_ .

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