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Day 239: MHT-CET Physics

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

  1. Question 1

    Mechanical Properties of Fluids. Asked once: 20 Apr 2025 S1 (same type asked 3 times) See all 3 of this type

    42
    A water drop of 0.01 cm30.01\,\text{cm}^3 is squeezed between two glass plates and spreads into an area of 10 cm210\,\text{cm}^2. If surface tension of water is 70 dyne/cm, then the normal force required to separate the glass plates from each other will be

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  2. Question 2

    Superposition of Waves. Asked once: 9 May 2024 S1 (same type asked 3 times) See all 3 of this type

    2
    When both source and listener are approaching each other the observed frequency of sound is given by (VLV_L and VSV_S is the velocity of listener & source respectively, n0=n_0= radiated frequency)

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  3. Question 3

    Wave Optics. Asked once: 20 Apr 2025 S2 (same type asked 3 times) See all 3 of this type

    47
    A ray of light of intensity ' II ' is incident on a parallel glass slab at a point ' AA ' as shown in figure. It undergoes partial reflection and refraction. At each reflection 25%25\% of incident energy is reflected. The rays AB and AB′AB^{'} undergo interference. The ratio Imax Imin \frac{I_{\text{max~}}}{I_{\text{min~}}} is

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  4. Question 4

    Kinetic Theory of Gases. Asked once: 18 Apr 2026 S1 (same type asked 3 times) See all 3 of this type

    118
    An ideal gas is heated from 27 ∘C27\ ^\circ\mathrm{C} to 627 ∘C627\ ^\circ\mathrm{C} at constant pressure. If initial volume of gas is 4 m34\ \mathrm{m^3}, then the new volume of the gas will be

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  5. Question 5

    Oscillations. Asked once: 11 May 2023 S2 (same type asked 3 times) See all 3 of this type

    10
    A piece of wood has length, breadth and height, 'a', 'b' and 'c' respectively. Its relative density is 'd'. It is floating in water such that the side 'a' is vertical. It is pushed down a little and released. The time period of S.H.M. executed by it is (g=g = acceleration due to gravity)

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