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Day 256: MHT-CET Physics

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

  1. Question 1

    Thermal Properties of Matter. Asked once: May 2021 S1 (same type asked 2 times) See all 2 of this type

    38
    540 g of ice at 0∘C0^\circ\text{C} is mixed with 540 g of water at 80∘C80^\circ\text{C}. The final temperature of the mixture will be

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  2. Question 2

    Electromagnetic Induction. Asked once: 26 Apr 2025 S1 (same type asked 2 times) See all 2 of this type

    8
    When magnetic flux changes from 6.5×10−2 Wb6.5 \times10^{- 2}\text{ }Wb to 11×10−2 Wb11 \times10^{- 2}\text{ }Wb and the change in current is 0.03 A , the coefficient of mutual inductance will be

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  3. Question 3

    Electrostatics. Asked once: 12 May 2024 S1 (same type asked 2 times) See all 2 of this type

    10
    Two electric dipoles of moment PP and 27P27P are placed on a line with their centres 24 cm apart. Their dipole moments are in opposite direction. At which point the electric field will be zero between the dipoles from the centre of dipole of moment PP?

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  4. Question 4

    Mechanical Properties of Solids. Asked once: 9 May 2023 S1 (same type asked 2 times) See all 2 of this type

    16
    The potential energy of a long spring when it is stretched by 3 cm is UU. If the spring is stretched by 9 cm, potential energy stored in it will be

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  5. Question 5

    AC Circuits. Asked once: 10 May 2023 S2 (same type asked 2 times) See all 2 of this type

    3
    An a.c. voltage source V=V0sin⁡ωtV = V_0 \sin\omega t is connected across resistance RR and capacitance CC in series. It is given that R=1ωCR = \frac{1}{\omega C} and the peak current is I0I_0. If the angular frequency of the voltage source is changed to ω3\frac{\omega}{3}, then the new peak current in the circuit is

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