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Day 145: MHT-CET Physics

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

  1. Question 1

    Magnetic Fields Due to Electric Current. Asked 2 times: 4 May 2023 S1, 13 Apr 2026 S2 See all 2 times it was asked

    135
    The magnetic moments associated with two closely wound circular coils a and b of radius rr and 2r2r respectively are equal if (where NaN_a, IaI_a and NbN_b, IbI_b are number of turns and current in A and B respectively)

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  2. Question 2

    Mechanical Properties of Fluids. Asked 2 times: 4 May 2023 S1, 13 Apr 2026 S2 See all 2 times it was asked

    112
    The surface of water in a water tank of cross-section area 750 cm2750\ \mathrm{cm^2} on the top of a house is hh m above the tap level. The speed of water coming out through the tap of cross-section area 500 mm2500\ \mathrm{mm^2} is 3030 cm/s. At that instant, dh/dtdh/dt is y×10−3y \times 10^{-3} m/s. The value of yy will be

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  3. Question 3

    Optics (Ray). Asked 2 times: 9 May 2024 S1, 13 Apr 2026 S2 See all 2 times it was asked

    140
    When a beam of white light is allowed to pass through convex lens parallel to principle axis, the different colors of light converge at different point on the principle axis after refraction. This is called

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  4. Question 4

    Oscillations. Asked 2 times: 10 May 2024 S1, 13 Apr 2026 S2 See all 2 times it was asked

    120
    The amplitude of a particle executing SHM is 33 cm. The displacement at which its kinetic energy will be 25%25\% more than the potential energy is (in cm)

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  5. Question 5

    Oscillations. Asked 2 times: 4 May 2023 S1, 13 Apr 2026 S2 See all 2 times it was asked

    121
    The velocity of a particle executing SHM varies with displacement (x)(x) as 4v2=50−x24v^2 = 50 - x^2. The time period of oscillations is x/7x/7 s. The value of xx is (Take π=22/7\pi = 22/7)

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