PYQ Vault

Day 417: JEE Mains Physics

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

  1. Question 1

    System of Particles and Rotational Motion. Asked once: 2021 Paper 12 (same type asked 7 times) See all 7 of this type

    17
    A solid cylinder and ring are released from rest in top of inclined plane. Find ratio of their velocities when they reach bottom, assuming pure rolling

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  2. Question 2

    Current Electricity. Asked once: 2021 Paper 17 (same type asked 7 times) See all 7 of this type

    20
    The resistance of a conductor at 15∘C15^{\circ}C is 16Ω16\Omega and at 100∘C100^{\circ}C is 20Ω20\Omega. What will be the temperature coefficient of resistance of the conductor?

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  3. Question 3

    Units and Measurements. Asked once: 2021 Paper 1 (same type asked 7 times) See all 7 of this type

    15
    The work done by a gas molecule in an isolated system is given by, w=αβ2e−x2αkTw = \alpha\beta^{2}e^{-\frac{x^{2}}{\alpha kT}}, where xx is the displacement, kk is the Boltzmann constant and TT is the temperature. α\alpha and β\beta are constants. Then the dimensions of β\beta will be --

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  4. Question 4

    Units and Measurements. Asked once: 31 Jan 2024 (same type asked 6 times) See all 6 of this type

    11
    A force is represented by F=ax2+bt1/2F =ax^{2}+bt^{1/2} Where x=x = distance and t=t = time. The dimensions of b2/ab^{2}/a are :

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  5. Question 5

    Units and Measurements. Asked once: 2 Apr 2025 (same type asked 20 times) See all 20 of this type

    18
    Match List-I with List-II.
    List-IList-II
    (A) Coefficient of viscosity(I) [ML0T−3]\left\lbrack ML^{0}T^{-3} \right\rbrack
    (B) Intensity of wave(II) [ML−2T−2]\left\lbrack ML^{-2}T^{-2} \right\rbrack
    (C) Pressure gradient(III) [M−1LT2]\left\lbrack M^{-1}LT^{2} \right\rbrack
    (D) Compressibility(IV) [ML−1T−1]\left\lbrack ML^{-1}T^{-1} \right\rbrack
    Choose the correct answer from the options given below :

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