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Day 384: MHT-CET Physics

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

  1. Question 1

    Rotational Dynamics. Asked once: 13 Apr 2026 S2

    108
    A thin uniform rod of length 22 m cross-sectional area 'A' and density 'd' is rotated about an axis passing through the centre and perpendicular to its length with angular velocity ω\omega. If the value of ω\omega in terms of its rotational kinetic energy EE is (αE/Ad)1/2(\alpha E/Ad)^{1/2}, then the value of α\alpha is

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  2. Question 2

    Semiconductor Devices. Asked once: 21 Apr 2025 S1

    14
    Which of the following logic gates is called as Universal gate?

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  3. Question 3

    Sound. Asked once: 11 May 2023 S2

    17
    Which of the following statements is NOT true?

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  4. Question 4

    Structure of Atoms and Nuclei. Asked once: 11 May 2024 S1

    30
    In a radioactive disintegration, the ratio of initial number of atoms to the number of atoms present at time t=12λt = \frac{1}{2\lambda} is [λ\lambda = decay constant]

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  5. Question 5

    Superposition of Waves. Asked once: 12 May 2024 S1

    19
    The displacement of two sinusoidal waves is given by the equation y1=8sin⁡(20x−30t)y_{1}=8\sin(20x-30t), y2=8sin⁡(25x−40t)y_{2}=8\sin(25x-40t). Then the phase difference between the waves after time t=2 st=2\,\text{s} and distance x=5 cmx=5\,\text{cm} will be

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