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Day 391: MHT-CET Physics

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

  1. Question 1

    Motion in a Plane. Asked once: 17 Apr 2026 S1

    101
    Resultant of two vectors P⃗\vec{P} and Q⃗\vec{Q} is of magnitude A. If Q⃗\vec{Q} is reversed, then the resultant is of magnitude B. The value of A2+B2A^2 + B^2 is

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  2. Question 2

    Optics (Ray). Asked once: 26 Apr 2025 S1

    24
    A monochromatic ray of light is incident normally on a thin prism of refracting angle A . The ray is deviated through an angle (1.15)∘(1.15)^{\circ} in passing through the prism. The ray reflected internally from the second face emerges from the first face making an angle of (6.3)∘(6.3)^{\circ} with the incident ray. The refractive index of the prism is

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  3. Question 3

    Oscillations. Asked once: 14 May 2024 S2

    47
    A uniform circular disc of mass 12 kg is held by two identical springs. When the disc is slightly pressed down and released, it executes S.H.M. of period 2 second. The force constant of each spring is (π2=10\pi^2 = 10)

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  4. Question 4

    Rotational Dynamics. Asked once: 11 Apr 2026 S1

    107
    A flywheel rotating about a fixed axis has a kinetic energy of 500500 joule, if its angular frequency is 55 Hz, then calculate the moment of inertia of the wheel about the axis of rotation. (π2=10)(\pi^2 = 10)

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  5. Question 5

    Semiconductor Devices. Asked once: 13 May 2024 S2

    19
    If the maximum efficiency of a full wave rectifier is x% and that of half wave rectifier is y%, then the relation between x & y is

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