PYQ Vault

Day 61: MHT-CET Physics

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

  1. Question 1

    Superposition of Waves. This type asked 4 times: 15 May 2023 S1, 13 Apr 2026 S1, 16 Apr 2026 S1, 12 May 2026 S2. This one: 12 May 2026 S2 See all 4 of this type

    122
    In sonometer experiment, the string of length ′L′'L' under tension vibrates in second overtone between the two bridges. The amplitude of vibration is maximum at length

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  2. Question 2

    Semiconductor Devices. This type asked 4 times: 9 May 2023 S1, 10 May 2024 S2, 15 Apr 2026 S2, 12 May 2026 S1. This one: 12 May 2026 S1 See all 4 of this type

    150
    In one branch, 40 Ω40\,\Omega resistance and a p-n junction diode are connected in series and in another branch, 40 Ω40\,\Omega resistance is connected. Both the branches are connected in parallel to each other. The total resistance of the circuit when a) diode is forward biased and when b) diode is reverse biased respectively are {consider the p-n junction diode as an ideal diode}

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  3. Question 3

    Semiconductor Devices. This type asked 4 times: 4 May 2023 S2, 11 May 2023 S2, 16 May 2023 S1, 12 May 2026 S1. This one: 12 May 2026 S1 See all 4 of this type

    148
    The truth table for the system of four NAND gates as shown in the figure is

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  4. Question 4

    Electrostatics. This type asked 4 times: 2 May 2023 S2, 3 May 2023 S2, 23 Apr 2025 S1, 20 Apr 2026 S2. This one: 20 Apr 2026 S2 See all 4 of this type

    126
    A charge QQ is placed at each corner of a cube of side rr. The potential at the centre of the cube is (ϵ0\epsilon_0 = permittivity of free space)

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  5. Question 5

    Sound. This type asked 4 times: May 2021 S1, 17 Apr 2026 S1, 20 Apr 2026 S1, 20 Apr 2026 S2. This one: 20 Apr 2026 S2 See all 4 of this type

    122
    Two monoatomic ideal gases '1' and '2' of molecular masses m1m_1 and m2m_2 respectively are enclosed in separate containers kept at the same temperature. The ratio of the speed of sound in gas '1' to that in gas '2' is

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