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Day 210: MHT-CET Physics

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

  1. Question 1

    Magnetic Materials. Asked once: 13 Apr 2026 S2 (same type asked 6 times) See all 6 of this type

    134
    A rod with a circular cross-section area 2 cm22\ \mathrm{cm^2} and length 4040 cm is wound uniformly with 400400 turns of an insulated wire. If a current 0.40.4 A flows in the wire winding, the total magnetic flux produced inside the winding is 4π×10−64\pi \times 10^{-6} Wb. The relative permeability of the rod is (Given permeability of vacuum μ0=4π×10−7 N m A−2\mu_0 = 4\pi \times 10^{-7}\ \mathrm{N\,m\,A^{-2}})

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  2. Question 2

    Rotational Dynamics. Asked once: 19 Apr 2025 S2 (same type asked 6 times) See all 6 of this type

    25
    A weightless thread can bear tension up to 3.7 kg wt. A stone of mass 500 gram is tied to it and revolved in circular path of radius 4 m in vertical plane. Maximum angular velocity of the stone will be (acceleration due to gravity, g=10 m/s2g = 10\text{ }m/s^{2} )

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  3. Question 3

    Superposition of Waves. Asked once: 15 Apr 2026 S2 (same type asked 6 times) See all 6 of this type

    123
    To increase the frequency of transverse oscillations of a stretched string by 40%, the tension must be increased by

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  4. Question 4

    Electrostatics. Asked once: 17 Apr 2026 S2 (same type asked 6 times) See all 6 of this type

    126
    Two point charges +e and +4e are kept at a distance 'd' units apart. Third point charge +q is placed between the two charges at a distance 'x' units from charge +e so as to be in equilibrium. The value of 'x' is

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  5. Question 5

    Kinetic Theory of Gases. Asked once: 25 Apr 2025 S1 (same type asked 6 times) See all 6 of this type

    40
    The volume of given mass of a gas is increased by 7%7\% at constant temperature. The pressure should be increased by

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