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Change in volume of a solid heated, from its linear expansion coefficient

This type of question, asked 3 times: 9 May 2024 S1, 9 May 2024 S2, 12 May 2026 S2. All 3 questions below, oldest first.

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  1. Question 1

    9 May 2024 S1

    35
    Two uniform brass rods A & B of lengths 'll' & '2l2l' and their radii '2r2r' & 'rr' respectively are heated to same temperature. The ratio of the increase in the volume of rod A to that of rod B is

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  2. Question 2

    9 May 2024 S2

    16
    The side of a copper cube is 1 m at 0∘0^\circC. What will be the change in its volume, when it is heated to 100∘100^\circC? αcopper=18×10−6\alpha_{copper} = 18\times10^{-6}/°C

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  3. Question 3

    12 May 2026 S2

    111
    What is the change in volume of an iron sphere of volume 400400 cm3^3, when it is heated from 0∘C0^\circ C to 50∘C50^\circ C ? (αiron=12×10−6/∘C\alpha_{iron} = 12 \times 10^{-6}/^\circ C)

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