PYQ Vault

Day 123: JEE Mains Physics

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

  1. Question 1

    Work, Energy and Power. This type asked 2 times: 29 Jan 2024, 22 Jan 2025. This one: 22 Jan 2025 See all 2 of this type

    95
    A body of mass 100 g is moving in circular path of radius 2 m on vertical plane as shown in figure. The velocity of the body at point A is 10 m/s10\text{ }m/s. The ratio of its kinetic energies at point B and C is : (Take acceleration due to gravity as 10 m/s210\text{ }m/s^{2} )

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  2. Question 2

    Alternating Current. This type asked 2 times: 6 Apr 2024, 9 Apr 2024. This one: 9 Apr 2024 See all 2 of this type

    28
    When a coil is connected across a 20 V20\text{ }V dc supply, it draws a current of 5 A5\text{ }A. When it is connected across 20 V,50 Hz20\text{ }V,50\text{ }Hz ac supply, it draws a current of 4 A4\text{ }A. The self inductance of the coil is ______ mHmH. (Take π=3\pi= 3 )
  3. Question 3

    Electrostatics. This type asked 2 times: 27 Jun 2022, 9 Apr 2024. This one: 9 Apr 2024 See all 2 of this type

    7
    A capacitor is made of a flat plate of area AA and a second plate having a stair-like structure as shown in figure. If the area of each stair is A3\frac{A}{3} and the height is dd, the capacitance of the arrangement is:

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  4. Question 4

    Electrostatics. This type asked 2 times: 24 Jan 2023, 9 Apr 2024. This one: 9 Apr 2024 See all 2 of this type

    22
    At the centre of a half ring of radius R=10 cmR = 10\text{ }cm and linear charge density 4nCm−14nCm^{- 1}, the potential is xπVx\pi V. The value of xx is ____
  5. Question 5

    Kinetic Theory. This type asked 2 times: 8 Apr 2023, 9 Apr 2024. This one: 9 Apr 2024 See all 2 of this type

    93
    The temperature of a gas is −78∘C-78^{\circ}C and the average translational kinetic energy of its molecules is KK. The temperature at which the average translational kinetic energy of the molecules of the same gas becomes 2 K2\text{ }K is:

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