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Day 290: MHT-CET Physics

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

  1. Question 1

    Semiconductor Devices. Asked once: 11 May 2023 S2 (same type asked 4 times) See all 4 of this type

    45
    For the following digital logic circuit, the correct truth-table is

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  2. Question 2

    Sound. Asked once: 17 Apr 2026 S1 (same type asked 4 times) See all 4 of this type

    124
    The enclosed air inside a closed box of rigid walls has pressure P1P_1. The density of air inside this box is constant. On heating the gas, the pressure of the enclosed air is increased from P1P_1 to P2P_2. Now it is observed that the sound travels 1.4 times faster than at pressure P1P_1. The ratio P2P_2 by P1P_1 is

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  3. Question 3

    Electromagnetic Induction. Asked once: 16 Apr 2026 S2 (same type asked 4 times) See all 4 of this type

    136
    In the given circuit, if dI/dt=−1dI/dt = -1 A/s then the value of VABV_{AB} at this instant will be

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  4. Question 4

    Magnetic Materials. Asked once: 20 Apr 2025 S2 (same type asked 4 times) See all 4 of this type

    32
    Two bar magnets A and B are geometrically similar, but the magnetic moment of A is twice that of B.T1B.T_{1} is the time period of oscillation when their like poles are kept together. When unlike poles are kept together, the time period of oscillation is T2T_{2}. The ratio T1:T2T_{1}:T_{2} will be

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  5. Question 5

    AC Circuits. Asked once: May 2021 S1 (same type asked 4 times) See all 4 of this type

    24
    A series L-C-R circuit is connected to a source of alternating emf of 50 V and the potential difference across inductor and capacitor is 90 V and 60 V, respectively. The potential difference across the resistor is

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