PYQ Vault

Day 305: MHT-CET Physics

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

  1. Question 1

    Thermodynamics. Asked once: 20 Apr 2026 S1 (same type asked 9 times) See all 9 of this type

    115
    An ideal rigid diatomic gas (γ=75)\left(\gamma = \dfrac{7}{5}\right) undergoes an adiabatic change . If the relation between temperature and volume is TVx=TV^x = constant then the value of x is

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  2. Question 2

    Electromagnetic Induction. Asked once: 19 Apr 2025 S2 (same type asked 9 times) See all 9 of this type

    28
    The magnetic flux through a coil is 4×10−4 Wb4 \times10^{- 4}\text{ }Wb at time t=0t = 0. It reduces to 30%30\% of its original value in time tt second. If e.m.f. induced in the coil is 0.56 mV then the value of t is

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  3. Question 3

    Dual Nature of Radiation and Matter. Asked once: 11 May 2023 S2 (same type asked 8 times) See all 8 of this type

    3
    In case of photoelectric effect, the graph of measured stopping potential V0V_0 against frequency 'v' of incident light is a straight line. The slope of this line multiplied by the charge of electron (e) gives

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  4. Question 4

    Rotational Dynamics. Asked once: 11 May 2023 S2 (same type asked 8 times) See all 8 of this type

    47
    Moment of inertia of a disc about an axis passing through its centre and perpendicular to its plane is 'I'. The ratio of moment of inertia about a parallel axis tangential to its rim to passing through a point midway between the centre and the rim is

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  5. Question 5

    Superposition of Waves. Asked once: 11 May 2024 S2 (same type asked 8 times) See all 8 of this type

    7
    A sonometer wire 'A' of diameter 'd' under tension 'T' having density 'Q1Q_1' vibrates with fundamental frequency 'n'. If we use another wire 'B' which vibrates with same frequency under tension '2T' and diameter '2D', then density 'Q2Q_2' of wire 'B' will be

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