PYQ Vault

Day 375: MHT-CET Physics

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

  1. Question 1

    Magnetic Fields Due to Electric Current. Asked once: 20 Apr 2025 S2

    11
    An element Δl→=Δxi^\overrightarrow{\Delta l}= \Delta x\widehat{i} is placed at the origin and carries a current of 10 A . The magnitude of magnetic field on the Y axis at a distance of 0.5 m if Δx=1 cm\Delta x = 1\text{ }cm is (μo4π=10−7\left( \frac{\mu_{o}}{4\pi}=10^{- 7} \right. SI unit )(sin⁡90∘=1))\left( \sin90^{\circ}= 1 \right)

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  2. Question 2

    Mechanical Properties of Fluids. Asked once: 23 Apr 2025 S1

    37
    A wind with speed 50 m/s50\,\text{m/s} blows parallel to the roof of a house. The area of the roof is 300 m2300\,\text{m}^2. Assume that the pressure inside the house is atmospheric pressure. Density of air is 1.2 kg/m31.2\,\text{kg/m}^3. The magnitude of the force exerted by the wind on the roof will be

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  3. Question 3

    Motion in a Plane. Asked once: 20 Apr 2026 S1

    103
    A boat crosses a river from one bank A to another bank B which is opposite. The distance between them is D. The speed of water is VWV_W and that of boat relative to water is VBV_B. If VB=2VWV_B = 2V_W, the time taken by the boat to cross the river directly along AB is (sin⁡30∘=12)\left(\sin 30^\circ = \dfrac{1}{2}\right), (cos⁡30∘=32)\left(\cos 30^\circ = \dfrac{\sqrt{3}}{2}\right)

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  4. Question 4

    Optics (Ray). Asked once: 15 Apr 2026 S2

    141
    In the phenomenon of refraction of light for the same angle of incidence

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  5. Question 5

    Oscillations. Asked once: 23 Apr 2025 S1

    44
    The amplitude of a damped oscillator becomes (13)rd\left( \frac{1}{3} \right)^{rd} of original amplitude in 2 seconds. If its amplitude after 6 second become (1n)\left( \frac{1}{n} \right) times the original amplitude, the value of nn is ( nn is nonzero integer)

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