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Day 95: MHT-CET Physics

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

  1. Question 1

    Electrostatics. This type asked 3 times: 9 May 2024 S1, 19 Apr 2026 S2, 14 May 2026 S1. This one: 14 May 2026 S1 See all 3 of this type

    126
    A parallel plate capacitor having capacity 1212 pF is charged by a battery of 1010 V between its plates. The battery is now disconnected and a slab of dielectric constant 66 is kept between the plates. The work done by the capacitor on the slab is

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  2. Question 2

    Kinetic Theory of Gases. This type asked 3 times: 11 May 2023 S1, 21 Apr 2025 S1, 14 May 2026 S1. This one: 14 May 2026 S1 See all 3 of this type

    117
    At 10∘C10^\circ\mathrm{C}, the value of density of a fixed mass of a gas (ideal) divided by its pressure is xx. At 110∘C110^\circ\mathrm{C} this ratio is

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  3. Question 3

    Mechanical Properties of Fluids. This type asked 3 times: 20 Apr 2025 S1, 21 Apr 2025 S1, 14 May 2026 S1. This one: 14 May 2026 S1 See all 3 of this type

    109
    A drop of some liquid of volume 0.04 cm30.04\ \mathrm{cm^3} is placed on the surface of the glass plate. Then another glass plate is placed on it such that the liquid forms a thin layer of area 20 cm220\ \mathrm{cm^2} between the surfaces. To separate the plates a force of 16×10516 \times 10^5 dyne has to be applied normal to the surfaces. The surface tension of the liquid in dyne/cm is

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  4. Question 4

    Superposition of Waves. This type asked 3 times: 9 May 2024 S1, 13 May 2026 S1, 14 May 2026 S1. This one: 13 May 2026 S1 See all 3 of this type

    124
    A whistle sends out 256 waves in a second. If the whistle approaches the observer with velocity (13)rd\left(\dfrac{1}{3}\right)^{rd} of the velocity of sound in air. The number of waves per second observer will receive is

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  5. Question 5

    Wave Optics. This type asked 3 times: 4 May 2023 S2, 20 Apr 2025 S2, 14 May 2026 S1. This one: 14 May 2026 S1 See all 3 of this type

    141
    A parallel beam of light of intensity I0I_0 is incident on a glass plate, 25%25\% of light is reflected by upper surface (I1)(I_1) and 50%50\% of light is reflected from lower surface (I2)(I_2). The ratio I2I_2 to I1I_1 is

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