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Day 419: MHT-CET Physics

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

  1. Question 1

    Laws of Motion. Asked once: 9 May 2023 S1

    15
    In the system of two particles of masses m1m_1 and m2m_2, the first particle is moved by a distance dd towards the centre of mass. To keep the centre of mass unchanged, the second particle will have to be moved by a distance

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  2. Question 2

    Mechanical Properties of Fluids. Asked once: 10 May 2023 S2

    46
    A glass capillary of radius 0.35 mm is inclined at 60∘60^\circ with the vertical in water. The height of the water column in the capillary is (surface tension of water =7×10−2= 7 \times 10^{-2} N/m, acceleration due to gravity g=10g = 10 m/s2^2, cos⁡0∘=1\cos 0^\circ = 1, cos⁡60∘=0.5\cos 60^\circ = 0.5)

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  3. Question 3

    Motion in a Plane. Asked once: 22 Apr 2025 S2

    6
    Given A→=(2i^−3j^+k^),B→=(3i^+j^−2k^)\overrightarrow{A}= (2\widehat{i}- 3\widehat{j}+\widehat{k}),\overrightarrow{B}= (3\widehat{i}+\widehat{j}- 2\widehat{k}) and C→=(3i^+2j^+k^)\overrightarrow{C}= (3\widehat{i}+ 2\widehat{j}+\widehat{k}). Then (A→+B→)⋅C→(\overrightarrow{A}+\overrightarrow{B}) \cdot\overrightarrow{C} will be

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  4. Question 4

    Optics (Ray). Asked once: 10 May 2024 S2

    22
    To get three images of a single object, the angle between the two plane mirrors should be

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  5. Question 5

    Rotational Dynamics. Asked once: 19 Apr 2025 S1

    28
    A thin uniform rod of mass ' mm ' and length ' LL ' is pivoted at one end so that it can rotate in a vertical plane. The free end is held vertically above pivot and then released. The angular acceleration of the rod when it makes an angle ' θ\theta ' with the vertical is [consider negligible friction at the pivot] ( g=g = acceleration due to gravity)

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