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Day 74: JEE Mains Physics

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

  1. Question 1

    Gravitation. This type asked 3 times: 25 Jun 2022, 10 Apr 2023, 8 Apr 2024. This one: 8 Apr 2024 See all 3 of this type

    99
    Two satellite A and B go round a planet in circular orbits having radii 4R4R and RR respectively. If the speed of AA is 3v3v, the speed of BB will be:

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  2. Question 2

    Laws of Motion. This type asked 3 times: 26 Jul 2022, 1 Feb 2024, 8 Apr 2024. This one: 8 Apr 2024 See all 3 of this type

    17
    A player caught a cricket ball of mass 150 g150\text{ }g moving at a speed of 20 m/s20\text{ }m/s. If the catching process is completed in 0.1 s0.1\text{ }s, the magnitude of force exerted by the ball on the hand of the player is:

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  3. Question 3

    Oscillations. This type asked 3 times: 1 Feb 2023, 13 Apr 2023, 8 Apr 2024. This one: 8 Apr 2024 See all 3 of this type

    117
    An object of mass 0.2 kg0.2\text{ }kg executes simple harmonic motion along xx axis with frequency of (25π)Hz\left( \frac{25}{\pi} \right)Hz. At the position x=0.04 mx= 0.04\text{ }m the object has kinetic energy 0.5 J0.5\text{ }J and potential energy 0.4 J0.4\text{ }J. The amplitude of oscillation is_____ cmcm.

  4. Question 4

    System of Particles and Rotational Motion. This type asked 3 times: 2021 Paper 21, 30 Jan 2024, 8 Apr 2024. This one: 8 Apr 2024 See all 3 of this type

    96
    A thin circular disc of mass MM and radius RR is rotating in a horizontal plane about an axis passing through its centre and perpendicular to its plane with angular velocity ω\omega. If another disc of same dimensions but of mass M/2M/2 is placed gently on the first disc co-axially, then the new angular velocity of the system is :

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  5. Question 5

    Gravitation. This type asked 3 times: 8 Apr 2023, 10 Apr 2023, 6 Apr 2024. This one: 6 Apr 2024 See all 3 of this type

    95
    Assuming the earth to be a sphere of uniform mass density, a body weighed 300 N300\text{ }N on the surface of earth. How much it would weigh at R/4 depth under surface of earth?

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