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Day 3: MHT-CET Physics

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

  1. Question 1

    Electromagnetic Induction. Asked 12 times: 4 May 2023 S2*, 10 May 2023 S2*, 10 May 2024 S1, 10 May 2024 S2*, 11 May 2024 S1*, 19 Apr 2025 S1, 20 Apr 2025 S1*, 15 Apr 2026 S2*, 16 Apr 2026 S2, 17 Apr 2026 S2*, 12 May 2026 S1*, 19 May 2026 S2 (* = numbers or wording changed that year) See all 12 times it was asked

    135
    Two conducting circular loops of radii r1r_1 and r2r_2 are placed in the same plane with their centres coinciding. If r1>>r2r_1 >> r_2, then the mutual inductance MM between them is proportional to [I1=I_1 = current flowing through coil 1 and I2=I_2 = current flowing through coil 2]

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  2. Question 2

    AC Circuits. This type asked 12 times: 9 May 2023 S2, 10 May 2023 S1, 13 May 2024 S2, 19 Apr 2025 S2, 20 Apr 2025 S2, 21 Apr 2025 S1, 26 Apr 2025 S2, 11 Apr 2026 S1, 11 Apr 2026 S2, 19 Apr 2026 S2, 12 May 2026 S1, 19 May 2026 S1. This one: 19 May 2026 S1 See all 12 of this type

    137
    An inductor of inductance LL and a resistor of resistance RR are joined in series and connected to an a.c. source of frequency ω\omega. The power dissipated in the circuit is

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  3. Question 3

    Electrostatics. This type asked 12 times: May 2021 S1, 4 May 2023 S1, 19 Apr 2025 S1, 21 Apr 2025 S2, 23 Apr 2025 S1, 11 Apr 2026 S1, 13 Apr 2026 S1, 16 Apr 2026 S2, 19 Apr 2026 S1, 12 May 2026 S1, 13 May 2026 S2, 15 May 2026 S2. This one: 15 May 2026 S2 See all 12 of this type

    128
    A parallel plate capacitor of plate separation 22 mm and plate area 40 cm240\ \mathrm{cm^2} is filled with dielectric whose area is same as plates of capacitor. Thickness is 11 mm and dielectric constant is 55. New capacitance is (ϵ0\epsilon_0 = permittivity of free space)

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  4. Question 4

    Wave Optics. This type asked 12 times: 15 May 2023 S2, 12 May 2024 S2, 14 May 2024 S2, 20 Apr 2025 S1, 22 Apr 2025 S2, 13 Apr 2026 S2, 18 Apr 2026 S1, 18 Apr 2026 S2, 13 May 2026 S1, 13 May 2026 S2, 14 May 2026 S1, 15 May 2026 S1. This one: 15 May 2026 S1 See all 12 of this type

    141
    In Young's experiment, one of the slit is covered with a transparent sheet of thickness 3.6×10−33.6 \times 10^{-3} cm due to which position of central image shifts to a position originally occupied by 30th30^{th} bright fringe. The refractive index of the sheet is (λ=6000 A˚)(\lambda = 6000\ \mathrm{\mathring{A}})

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  5. Question 5

    Electromagnetic Induction. This type asked 12 times: 2 May 2023 S1, 9 May 2023 S2, 10 May 2023 S1, 10 May 2023 S2, 10 May 2024 S2, 12 May 2024 S1, 19 Apr 2025 S1, 26 Apr 2025 S1, 18 Apr 2026 S1, 18 Apr 2026 S2, 19 Apr 2026 S2, 14 May 2026 S2. This one: 14 May 2026 S2 See all 12 of this type

    134
    The self induced e.m.f. of a coil is 2525 V. When the current in it is changed at uniform rate from 1010 A to 2525 A in 11 s, the change in the energy of the inductance is

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