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Day 10: 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 7 times: 2021 Paper 12, 2021 Paper 13, 25 Jul 2022, 27 Jan 2024, 4 Apr 2024, 24 Jan 2025, 4 Apr 2025. This one: 4 Apr 2025 See all 7 of this type

    21
    A circular ring and a solid sphere having same radius roll down on an inclined plane from rest without slipping. The ratio of their velocities when reached at the bottom of the plane is x5\sqrt{\frac{x}{5}} where x=x =

  2. Question 2

    Mechanical Properties of Solids. This type asked 7 times: 2021 Paper 11, 2021 Paper 26, 29 Jun 2022, 11 Apr 2023, 4 Apr 2024, 23 Jan 2025, 2 Apr 2025. This one: 2 Apr 2025 See all 7 of this type

    99
    The length of a light string is 1.4 m when the tension on it is 5 N . If the tension increases to 7 N , the length of the string is 1.56 m . The original length of the string is ____\_\_\_\_ m.

  3. Question 3

    Motion in a Straight Line. This type asked 7 times: 28 Jun 2022, 25 Jan 2023, 30 Jan 2023, 1 Feb 2023, 10 Apr 2023, 9 Apr 2024, 2 Apr 2025. This one: 2 Apr 2025 See all 7 of this type

    25
    A person travelling on a straight line moves with a uniform velocity v1v_{1} for a distance x and with a uniform velocity v2v_{2} for the next 32x\frac{3}{2}x distance. The average velocity in this motion is 507 m/s\frac{50}{7}\text{ }m/s. If v1v_{1} is 5 m/s5\text{ }m/s then v2=v_{2} = ____\_\_\_\_ m/sm/s.

  4. Question 4

    Thermal Properties of Matter. This type asked 7 times: 2021 Paper 13, 25 Jan 2023, 29 Jan 2023, 6 Apr 2023, 12 Apr 2023, 24 Jan 2025, 29 Jan 2025. This one: 29 Jan 2025 See all 7 of this type

    94
    A cup of coffee cools from 90∘C90^{\circ}C to 80∘C80^{\circ}C in t minutes when the room temperature is 20∘C20^{\circ}C. The time taken by the similar cup of coffee to cool from 80∘C80^{\circ}C to 60∘C60^{\circ}C at the same room temperature is :

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  5. Question 5

    Dual Nature of Radiation and Matter. This type asked 7 times: 2021 Paper 7, 2021 Paper 15, 2021 Paper 16, 26 Jun 2022, 28 Jun 2022, 29 Jan 2024, 28 Jan 2025. This one: 28 Jan 2025 See all 7 of this type

    18
    A proton of mass ' mp′m_{p}^{'} ' has same energy EE as that of a photon of wavelength ' λ\lambda '. If the proton is moving at non-relativistic speed, then ratio of its de Broglie wavelength to the wavelength of photon is.

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