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Day 2: MHT-CET Physics

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

  1. Question 1

    Dual Nature of Radiation and Matter. This type asked 14 times: May 2022 S1, 4 May 2023 S2, 10 May 2023 S1, 11 May 2023 S1, 15 May 2023 S1, 10 May 2024 S1, 10 May 2024 S2, 12 May 2024 S2, 14 May 2024 S1, 19 Apr 2025 S2, 23 Apr 2025 S1, 13 Apr 2026 S2, 17 Apr 2026 S1, 18 Apr 2026 S1. This one: 18 Apr 2026 S1 See all 14 of this type

    144
    If the kinetic energy of a particle is increased to 16 times, the percentage change in the de Broglie wavelength of a particle is

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  2. Question 2

    Thermodynamics. This type asked 13 times: 3 May 2023 S2, 4 May 2023 S1, 9 May 2023 S1, 9 May 2023 S2, 15 May 2023 S1, 16 May 2023 S1, 16 May 2023 S2, 19 Apr 2025 S2, 22 Apr 2025 S1, 22 Apr 2025 S2, 25 Apr 2025 S2, 14 May 2026 S2, 19 May 2026 S2. This one: 19 May 2026 S2 See all 13 of this type

    116
    Heat is supplied to a rigid diatomic gas at constant pressure. The ratio of ΔQ:ΔU:ΔW\Delta Q : \Delta U : \Delta W is {ΔQ\Delta Q = heat supplied, ΔU\Delta U = change in internal energy, ΔW\Delta W = work done during expansion}

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  3. Question 3

    Mechanical Properties of Fluids. This type asked 13 times: 9 May 2023 S2, 15 May 2023 S1, 10 May 2024 S2, 11 May 2024 S1, 11 May 2024 S2, 19 Apr 2025 S1, 22 Apr 2025 S2, 26 Apr 2025 S2, 13 Apr 2026 S1, 19 Apr 2026 S1, 19 Apr 2026 S2, 13 May 2026 S1, 15 May 2026 S2. This one: 15 May 2026 S2 See all 13 of this type

    112
    Two water drops each of radius rr coalesce to form a big drop. If TT is the surface tension, the surface energy released in this process is 4πr2Tx4\pi r^2Tx. The value of xx is

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  4. Question 4

    Structure of Atoms and Nuclei. This type asked 13 times: 15 May 2023 S2, 9 May 2024 S2, 11 May 2024 S2, 14 May 2024 S1, 19 Apr 2025 S2, 20 Apr 2025 S2, 21 Apr 2025 S2, 11 Apr 2026 S2, 13 Apr 2026 S1, 15 Apr 2026 S1, 16 Apr 2026 S1, 17 Apr 2026 S1, 19 Apr 2026 S2. This one: 19 Apr 2026 S2 See all 13 of this type

    146
    The magnetic moment of electron due to orbital motion is proportional to (nn = principal quantum number)

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  5. Question 5

    Dual Nature of Radiation and Matter. Asked 12 times: 2 May 2023 S1*, 15 May 2023 S2*, 9 May 2024 S2*, 11 May 2024 S2*, 12 May 2024 S1*, 13 May 2024 S2*, 14 May 2024 S2*, 22 Apr 2025 S1*, 15 Apr 2026 S2*, 19 Apr 2026 S2*, 15 May 2026 S2*, 19 May 2026 S2 (* = numbers or wording changed that year) See all 12 times it was asked

    144
    When a metallic surface is illuminated with radiation of wavelength λ\lambda, the stopping potential is VV. If the surface is now illuminated with a radiation of wavelength 4λ4\lambda, the stopping potential (V8)\left(\dfrac{V}{8}\right). The threshold wavelength for the surface is

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