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Day 71: MHT-CET Physics

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

  1. Question 1

    Semiconductor Devices. Asked 3 times: 10 May 2023 S1*, 19 Apr 2025 S2*, 14 May 2026 S2 (* = numbers or wording changed that year) See all 3 times it was asked

    149
    The output Y, when all the three inputs are first high and then low, will respectively be

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  2. Question 2

    Superposition of Waves. Asked 3 times: May 2022 S1*, 4 May 2023 S2*, 14 May 2026 S2 (* = numbers or wording changed that year) See all 3 times it was asked

    123
    The equation of a stationary wave along a stretched string is y=5sin⁡πx3cos⁡40πty = 5\sin\dfrac{\pi x}{3}\cos 40\pi t where xx and yy are in cm and tt in second. The separation between two adjacent nodes is

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  3. Question 3

    Electrostatics. Asked 3 times: 4 May 2023 S2, 9 May 2023 S1, 14 May 2026 S1 See all 3 times it was asked

    125
    The electric flux entering and leaving an enclosed surface are Φ1\Phi_1 and Φ2\Phi_2 respectively. The electric charge inside the surface will be (ε0\varepsilon_0 = permittivity of vacuum)

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  4. Question 4

    Electrostatics. Asked 3 times: 16 May 2023 S1, 12 May 2026 S1, 14 May 2026 S1 See all 3 times it was asked

    128
    When a dielectric is placed in an electric field, the electric field inside the dielectric

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  5. Question 5

    Oscillations. Asked 3 times: 3 May 2023 S2, 19 Apr 2025 S1, 14 May 2026 S1 See all 3 times it was asked

    118
    A mass is suspended from a vertical spring which is executing S.H.M. of frequency 1010 Hz. The spring is unstretched at the highest point of oscillation. Maximum speed of the mass is (g=10 m/s2)(g = 10\ \mathrm{m/s^2})

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