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Day 181: MHT-CET Physics

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

  1. Question 1

    Thermal Properties of Matter. This type asked 2 times: 4 May 2023 S1, 20 Apr 2026 S1. This one: 20 Apr 2026 S1 See all 2 of this type

    113
    Two rods of same length, radius and material transfer a given amount of heat in 't' second when they are joined as shown in fig (1). But when they are joined as shown in fig (2) then they will transfer same heat in same condition in time

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  2. Question 2

    Laws of Motion. This type asked 2 times: 17 Apr 2026 S1, 19 Apr 2026 S2. This one: 19 Apr 2026 S2 See all 2 of this type

    106
    Two particles of masses 2 g and 4 g are situated at the opposite ends, A and B of a wooden bar respectively. Let l(AB)=9l(AB) = 9 cm. The center of mass of the system will be

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  3. Question 3

    Rotational Dynamics. This type asked 2 times: 22 Apr 2025 S1, 19 Apr 2026 S2. This one: 19 Apr 2026 S2 See all 2 of this type

    107
    A force of 3i^+2j^−k^3\hat{i} + 2\hat{j} - \hat{k} N acts on a particle with position vector i^+j^−k^\hat{i} + \hat{j} - \hat{k} m. The magnitude of torque of given force is

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  4. Question 4

    Thermal Properties of Matter. This type asked 2 times: May 2021 S1, 19 Apr 2026 S2. This one: 19 Apr 2026 S2 See all 2 of this type

    113
    1515 g of ice at 0 ∘C0\ ^\circ\mathrm{C} is added to a vessel containing water at 40 ∘C40\ ^\circ\mathrm{C}. The mass of water and water equivalent of the vessel is 6060 g. Assuming that negligible heat is taken from the surroundings, the final temperature of the mixture will be [ Lice=80L_{\mathrm{ice}} = 80 cal/g , Swater=1S_{\mathrm{water}} = 1 cal/g ]

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  5. Question 5

    Electromagnetic Induction. This type asked 2 times: 26 Apr 2025 S1, 19 Apr 2026 S1. This one: 19 Apr 2026 S1 See all 2 of this type

    135
    Consider two coils in which a current in one coil carrying 66 A causes the change in the flux in the second coil 12×10−412 \times 10^{-4} weber/turn. The second coil has 20002000 turns. The mutual inductance between the coils is

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