PYQ Vault

Day 129: MHT-CET Physics

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

  1. Question 1

    Current Electricity. Asked 2 times: 12 May 2024 S2, 18 Apr 2026 S1 See all 2 times it was asked

    130
    A potentiometer wire of length 44 m and resistance 5 Ω5\,\Omega is connected in series with a resistance of 992 Ω992\,\Omega and a cell of e.m.f. 44 V with internal resistance 3 Ω3\,\Omega. The length of 0.750.75 m on potentiometer wire balances the e.m.f. of

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  2. Question 2

    Dual Nature of Radiation and Matter. Asked 2 times: 22 Apr 2025 S2*, 18 Apr 2026 S1 (* = numbers or wording changed that year) See all 2 times it was asked

    145
    In case of photoelectric emission from certain metal, the cutoff frequency is ν\nu. If the radiation of frequency 3ν3\nu is incident on the metal plate, the maximum possible velocity of the emitted electrons will be (mm = mass of electron, hh = Planck's constant)

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  3. Question 3

    Electromagnetic Induction. Asked 2 times: 9 May 2023 S2*, 18 Apr 2026 S1 (* = numbers or wording changed that year) See all 2 times it was asked

    137
    The magnetic potential energy stored in a certain inductor is 4949 mJ when the current in the inductor is 7070 mA. The inductance of the inductor is

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  4. Question 4

    Magnetic Materials. Asked 2 times: 21 Apr 2025 S2*, 18 Apr 2026 S1 (* = numbers or wording changed that year) See all 2 times it was asked

    132
    The region inside a current carrying toroid is filled with a material (Niobium) having susceptibility χ=2.6×10−5\chi = 2.6 \times 10^{-5}. The percentage increase in the magnetic field in the presence of Niobium over that without it, is

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  5. Question 5

    Oscillations. Asked 2 times: 11 May 2023 S2, 18 Apr 2026 S1 See all 2 times it was asked

    119
    All the springs in fig (a), (b) and (c) are identical, each one having force constant K. Mass m is attached to each system. If TaT_a, TbT_b and TcT_c are the periodic time of oscillations of the three systems in fig (a), (b) and (c) respectively, then

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