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Day 117: JEE Mains Physics

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

  1. Question 1

    Ray Optics. This type asked 2 times: 29 Jun 2022, 22 Jan 2026 S1. This one: 22 Jan 2026 S1 See all 2 of this type

    23
    A parallel beam of light travelling in air (refractive index 1.0) is incident on a convex spherical glass surface of radius of curvature 50 cm. Refractive index of glass is 1.5. The rays converge to a point at a distance x cm from the centre of the curvature of the spherical surface. The value of x is ____\_\_\_\_ cm.

  2. Question 2

    Gravitation. This type asked 2 times: 9 Apr 2024, 21 Jan 2026 S1. This one: 21 Jan 2026 S1 See all 2 of this type

    19
    Initially a satellite of 100 kg is in a circular orbit of radius 1.5RE1.5R_{E}. This satellite can be moved to a circular orbit of radius 3RE3R_{E} by supplying α×106 J\alpha \times10^{6}\text{ }J of energy. The value of α\alpha is ____\_\_\_\_ . (Take Radius of Earth RE=6×106 mR_{E}= 6 \times10^{6}\text{ }m and g=10m/s2g = 10m/s^{2} )

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  3. Question 3

    Motion in a Plane. This type asked 2 times: 27 Jan 2024, 21 Jan 2026 S1. This one: 21 Jan 2026 S1 See all 2 of this type

    6
    A 4 kg mass moves under the influence of a force F→=(4t3i^−3tj^)N\overrightarrow{F}=\left( 4t^{3}\widehat{i}- 3t\widehat{j} \right)N where tt is the time in second. If mass starts from origin at t=0t = 0, the velocity and position after t=2 st = 2\text{ }s will be :

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  4. Question 4

    System of Particles and Rotational Motion. This type asked 2 times: 2 Apr 2025, 21 Jan 2026 S1. This one: 21 Jan 2026 S1 See all 2 of this type

    23
    Two identical thin rods of mass M kg and length L m are connected as shown in figure. Moment of inertia of the combined rod system about an axis passing through point P and perpendicular to the plane of the rods is X12ML2\frac{X}{12}ML^{2}. The value of XX is ____\_\_\_\_ .

  5. Question 5

    Laws of Motion. This type asked 2 times: 29 Jan 2023, 7 Apr 2025. This one: 7 Apr 2025 See all 2 of this type

    14
    A cubic block of mass mm is sliding down on an inclined plane at 60∘60^{\circ} with an acceleration of g2\frac{g}{2}, the value of coefficient of kinetic friction is.

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