PYQ Vault

Day 81: MHT-CET Physics

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

  1. Question 1

    Electromagnetic Induction. Asked 3 times: 15 May 2023 S1, 11 Apr 2026 S2, 16 Apr 2026 S2 See all 3 times it was asked

    137
    Alternating current of peak value (2π)\left(\dfrac{2}{\pi}\right) A flows through the primary coil of a transformer. The coefficient of mutual inductance between primary and secondary coils is 1H. The peak value of induced e.m.f. in the secondary coil is (Frequency of a.c. = 50 Hz)

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  2. Question 2

    Units and Measurement. Asked 3 times: 20 Apr 2025 S2*, 26 Apr 2025 S1, 16 Apr 2026 S2 (* = numbers or wording changed that year) See all 3 times it was asked

    101
    The error in the measurement of length and mass of a cube is 3% and 4% respectively. The error in the measurement of its density will be

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  3. Question 3

    AC Circuits. Asked 3 times: 22 Apr 2025 S2, 13 Apr 2026 S1, 16 Apr 2026 S1 See all 3 times it was asked

    138
    An alternating e.m.f. is given by e=e0sin⁡ωte = e_0\sin\omega t. In what time the e.m.f. will have half its maximum value, if 'e' Starts from zero?

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  4. Question 4

    Current Electricity. Asked 3 times: 2 May 2023 S1*, 15 Apr 2026 S2*, 16 Apr 2026 S1 (* = numbers or wording changed that year) See all 3 times it was asked

    130
    A metre bridge experiment, the resistance in the left gap is 20 Ω20\,\Omega and in the right gap is 60 Ω60\,\Omega. The bridge is balanced. The distance of the null point from the centre of the wire is

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  5. Question 5

    Electrostatics. Asked 3 times: 10 May 2023 S2, 12 May 2024 S2*, 16 Apr 2026 S1 (* = numbers or wording changed that year) See all 3 times it was asked

    126
    Two point charges q1=6 μCq_1 = 6\ \mu\mathrm{C} and q2=4 μCq_2 = 4\ \mu\mathrm{C} are kept at points A and B in air where distance AB=10AB = 10 cm. What is the increase in potential energy of the system when q2q_2 is moved towards q1q_1, by 2 cm ? (14πϵ0=9×109 SI units)\left(\dfrac{1}{4\pi\epsilon_0} = 9 \times 10^9\ \text{SI units}\right)

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