PYQ Vault

Day 133: MHT-CET Physics

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

  1. Question 1

    Rotational Dynamics. Asked 2 times: 11 May 2024 S1, 17 Apr 2026 S2 See all 2 times it was asked

    105
    Radius of gyration of a thin uniform circular disc about the axis passing through its centre and perpendicular to its plane is KcK_c. Radius of gyration of the same disc about a diamter of the disc is KdK_d. the ratio Kd:KcK_d : K_c is

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  2. Question 2

    Rotational Dynamics. Asked 2 times: 16 Apr 2026 S1, 17 Apr 2026 S2 See all 2 times it was asked

    106
    A solid sphere of radius R and mass M is rotating about its diameter. The moment of intertia of the solid sphere rotating about an axis at a distance R3\dfrac{R}{3} from the centre and parallel to that diameter is

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  3. Question 3

    Semiconductor Devices. Asked 2 times: 12 May 2024 S2, 17 Apr 2026 S2 See all 2 times it was asked

    148
    In the following digital circuit, the output 'Y' will be '1' (one) for inputs 'A' and 'B' having values

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  4. Question 4

    Structure of Atoms and Nuclei. Asked 2 times: 23 Apr 2025 S1, 17 Apr 2026 S2 See all 2 times it was asked

    147
    The activity of a radioactive sample is measured as N0N_0 counts per minute at time t=0t = 0 and N0e\dfrac{N_0}{e} counts per minute at time t=3t = 3 minute. The time (in minute) in which the activity reduces to half the value, is

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  5. Question 5

    Superposition of Waves. Asked 2 times: 22 Apr 2025 S2*, 17 Apr 2026 S2 (* = numbers or wording changed that year) See all 2 times it was asked

    123
    In a pipe closed at one end, air column is vibrating in the fourth overtone so the vibrating air column has 'xx' nodes and 'yy' antinodes. The values of xx and yy are respectively

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