PYQ Vault

Day 83: MHT-CET Physics

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

  1. Question 1

    Thermal Properties of Matter. Asked 3 times: 2 May 2023 S2, 15 May 2023 S2, 16 Apr 2026 S1 See all 3 times it was asked

    114
    Rate of flow of heat through a cylindrical rod is 'H1H_1'. The temperature at the ends of the rod are T1T_1 and T2T_2. If all the dimensions of the rod become double and the temperature difference remains the same and if the rate of flow of heat becomes 'H2H_2' then H2=H_2 =

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  2. Question 2

    Thermodynamics. Asked 3 times: 10 May 2023 S1*, 11 May 2024 S1*, 16 Apr 2026 S1 (* = numbers or wording changed that year) See all 3 times it was asked

    117
    A monoatomic gas at pressure P having volume V expands isothermally to a volume 3V and then adiabatically to a volume 81 V. The final pressure of the gas is (γ=5/3)(\gamma = 5/3).

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  3. Question 3

    Superposition of Waves. Asked 3 times: 10 May 2024 S2*, 14 May 2024 S1*, 15 Apr 2026 S2 (* = numbers or wording changed that year) See all 3 times it was asked

    121
    A simple harmonic progressive wave is represented by y=Asin⁡(120πt+3x)y = A\sin(120\pi t + 3x). The distance between two points on the wave at a phase difference of π3\dfrac{\pi}{3} radian is

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  4. Question 4

    AC Circuits. Asked 3 times: 15 May 2023 S2*, 22 Apr 2025 S2*, 15 Apr 2026 S1 (* = numbers or wording changed that year) See all 3 times it was asked

    139
    A coil has inductive reactance 33 H. The ratio of its reactance when it is first connected to an a.c. source and then to d.c. source is

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  5. Question 5

    Electromagnetic Induction. Asked 3 times: 25 Apr 2025 S2*, 11 Apr 2026 S2*, 15 Apr 2026 S1 (* = numbers or wording changed that year) See all 3 times it was asked

    134
    A coil of 'n' turns and resistance R ΩR\,\Omega is connected in series with a resistance R/4R/4. The combination is moved for time 't' second through flux Φ1\Phi_1 to Φ2\Phi_2. The induced current in the circuit is

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