PYQ Vault

Day 117: MHT-CET Physics

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

  1. Question 1

    Electrostatics. Asked 2 times: 26 Apr 2025 S2, 12 May 2026 S2 See all 2 times it was asked

    128
    A capacitor of unknown capacitance is connected across a battery of ′V′'V' volt. The charge stored in it is ′Q′'Q' C. When potential across the capacitor is reduced by ′V1′'V_1' volt, the charge stored in it becomes ′Q1′'Q_1' C. The potential ′V′'V' is

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  2. Question 2

    Motion in a Plane. Asked 2 times: 19 Apr 2025 S2, 12 May 2026 S2 See all 2 times it was asked

    102
    The resultant of two vectors A⃗\vec{A} and B⃗\vec{B} is C⃗\vec{C}. If the magnitude of B⃗\vec{B} is doubled, the new resultant vector becomes perpendicular to A⃗\vec{A}. Then the magnitude of C⃗\vec{C} is

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  3. Question 3

    Thermodynamics. Asked 2 times: 13 May 2024 S2*, 12 May 2026 S2 (* = numbers or wording changed that year) See all 2 times it was asked

    113
    An ideal gas heat engine operate in Carnot cycle between 327∘C327^\circ C and 227∘C227^\circ C. It absorbs 6×1046 \times 10^4 cal of heat at higher temperature. How much is the amount of heat converted in to work?

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  4. Question 4

    Units and Measurement. Asked 2 times: 11 Apr 2026 S2*, 12 May 2026 S2 (* = numbers or wording changed that year) See all 2 times it was asked

    101
    A quantity QQ is formulated X−2Y+32Z−25X^{-2}Y^{+\frac{3}{2}}Z^{-\frac{2}{5}}. X,YX, Y and ZZ are independent parameters which have fractional errors of 0.10.1, 0.20.2 and 0.50.5 respectively in measurement. The maximum fractional error of QQ is

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  5. Question 5

    Oscillations. Asked 2 times: 16 Apr 2026 S1*, 12 May 2026 S2 (* = numbers or wording changed that year) See all 2 times it was asked

    117
    A ball released from height (h)(h) which makes perfectly elastic collision with ground. The frequency of periodic vibratory motion is (gg = acceleration due to gravity)

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