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Day 342: MHT-CET Physics

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

  1. Question 1

    Rotational Dynamics. Asked once: 19 May 2026 S1

    106
    The bob of a simple pendulum of length 2m is kept at P. It is released and when it reaches Q, it losses 20% of its total energy due to air resistance. Its velocity at Q is [Take g=9.8 m/s2g = 9.8\ \mathrm{m/s^2}]

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  2. Question 2

    Semiconductor Devices. Asked once: 13 May 2026 S1

    150
    There is no hole current in good conductors because they

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  3. Question 3

    Sound. Asked once: 19 Apr 2026 S1

    122
    Which one of the following statements regarding pitch of sound is 'WRONG' ? (A) Pitch refers to sharpness of sound. (B) Tone refers to the single frequency of that wave. (C) High pitch sound need not be louder. (D) In general male sound is sharper than that of a female.

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  4. Question 4

    Structure of Atoms and Nuclei. Asked once: 13 May 2026 S2

    146
    When an electron in hydrogen atom revolves in a stationary orbit, it

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  5. Question 5

    Superposition of Waves. Asked once: 13 May 2026 S2

    123
    An organ pipe closed at one end has fundamental frequency of 15001500 Hz. The maximum number of overtones generated by this pipe a normal person can hear is (neglect end connection)

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