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Day 407: MHT-CET Physics

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

  1. Question 1

    Current Electricity. Asked once: 14 May 2024 S1

    41
    A wire of length 3 m connected in the left gap of a meter-bridge balances 8 Ω8\,\Omega resistance in the right gap at a point, which divides the bridge wire in the ratio 3:2. The length of the wire corresponding to resistance of 1 Ω1\,\Omega is

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  2. Question 2

    Electromagnetic Induction. Asked once: 4 May 2023 S1

    44
    A massless square loop of wire of resistance R supporting a mass M hangs vertically with one of its sides in a uniform magnetic field B directed outwards in the shaded region. A d.c. voltage V is applied to the loop. For what value of V the magnetic force will exactly balance the weight of the supporting mass M? (side of loop =L= L, g=g = acceleration due to gravity)

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  3. Question 3

    Electrostatics. Asked once: 22 Apr 2025 S1

    31
    Three capacitors each of capacitance ' CC ' and breakdown voltage ' VV ' are connected in series. The capacitance and breakdown voltage of the series combination will be respectively

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  4. Question 4

    Laws of Motion. Asked once: 11 May 2023 S2

    43
    A moving body with mass 'm1m_1' strikes a stationary mass 'm2m_2'. What should be the ratio m1m2\frac{m_1}{m_2} so as to decrease the velocity of first by (1.5) times the velocity after the collision?

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  5. Question 5

    Mechanical Properties of Fluids. Asked once: 16 May 2023 S1

    45
    When capillary is dipped vertically in water, rise of water in capillary is 'h'. The angle of contact is zero. Now the tube is depressed so that its length above the water surface is h3\frac{h}{3}. The new apparent angle of contact is [cos⁡0°=1\cos 0° = 1]

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