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Day 55: MHT-CET Physics

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

  1. Question 1

    AC Circuits. Asked 4 times: 9 May 2023 S2*, 10 May 2023 S1*, 13 May 2024 S2*, 19 Apr 2025 S2 (* = numbers or wording changed that year) See all 4 times it was asked

    33
    In an L−RL-R circuit, the inductive reactance is equal to 3\sqrt{3} times the resistance ' RR ' of the circuit. An e.m.f. E=E0sin⁡(ωt)E =E_{0}\sin(\omega t) is applied to the circuit. The power consumed in the circuit is

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  2. Question 2

    Oscillations. This type asked 4 times: 9 May 2023 S1, 11 Apr 2026 S2, 13 Apr 2026 S2, 19 May 2026 S2. This one: 19 May 2026 S2 See all 4 of this type

    120
    A linear harmonic oscillator of force constant 2×1062 \times 10^6 N/m has amplitude 0.010.01 m. Its

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  3. Question 3

    Semiconductor Devices. This type asked 4 times: 15 May 2023 S1, 22 Apr 2025 S2, 20 Apr 2026 S1, 19 May 2026 S2. This one: 19 May 2026 S2 See all 4 of this type

    148
    In the energy band diagram of a p-type semiconductor, the "Acceptor Energy Level" is located

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  4. Question 4

    Superposition of Waves. This type asked 4 times: 3 May 2023 S1, 21 Apr 2025 S1, 23 Apr 2025 S1, 19 May 2026 S2. This one: 21 Apr 2025 S1 See all 4 of this type

    4
    A pipe open at both ends of length 1.5 m is dipped in water at one end such that 2nd 2^{\text{nd~}} overtone of vibrating air column is resonating with a tuning fork of frequency 330 Hz . The length of the pipe immersed in water is (Speed of sound in air =330 m/s= 330\text{ }m/s ) (Neglect end correction)

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  5. Question 5

    Thermodynamics. This type asked 4 times: 10 May 2023 S2, 13 May 2024 S2, 12 May 2026 S2, 19 May 2026 S2. This one: 19 May 2026 S2 See all 4 of this type

    115
    A Carnot engine has an efficiency of 30%30\%. The energy is supplied to the engine at the rate of 33 kW. The output power of the engine is

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