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Day 270: MHT-CET Physics

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

  1. Question 1

    AC Circuits. Asked once: 3 May 2023 S2 (same type asked 9 times) See all 9 of this type

    46
    A 42 mH inductor is connected to 200 V, 50 Hz a.c. supply. The r.m.s. value of current in the circuit will be nearly [Take π=227\pi=\frac{22}{7}]

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  2. Question 2

    AC Circuits. Asked once: 9 May 2024 S2 (same type asked 9 times) See all 9 of this type

    47
    The reactance of capacitor at 50 Hz is 5 Ω5\,\Omega. If the frequency is increased to 100 Hz, the new reactance is

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  3. Question 3

    Thermodynamics. Asked once: 13 May 2026 S1 (same type asked 9 times) See all 9 of this type

    116
    Out of the following relations which one is true in the case of an adiabatic process, where γ=Cp/Cv\gamma = C_p/C_v ?

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  4. Question 4

    Electromagnetic Induction. Asked once: 13 Apr 2026 S2 (same type asked 9 times) See all 9 of this type

    136
    A conducting loop of radius 10/[π]1/210/[\pi]^{1/2} cm is placed perpendicular to a uniform magnetic field 0.50.5 T. The magnetic field is decreased to zero in 0.50.5 s at a steady rate. The induced emf in the circular loop at 0.250.25 s is

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  5. Question 5

    Thermodynamics. Asked once: 11 May 2023 S1 (same type asked 9 times) See all 9 of this type

    19
    Two gases A and B having same initial state (P,V,n,T). Now gas A is compressed to V8\frac{V}{8} by isothermal process and other gas B is compressed to V8\frac{V}{8} by adiabatic process. The ratio of final pressure of gas A and B is (Both gases are monoatomic, γ=5/3\gamma = 5/3)

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