If the volume of a block of metal changes by 0.12 \% when heated through 20^\circ{C}, then find itscoefficient of linear expansion.

Correct Answer is : 2×10−5°C−1

4 \\times10^{-5}{ }^\circ{\C}^{-1}

4 \\times10^{-4}{ }^\circ{\C}^{-1}

2\\times10^{-5}{ }^\circ{\C}^{-1}

2\\times10^{-4}{ }^\circ{\C}^{-1}

AP EAPCET 20-Aug-2021 Shift 1 Paper

Section: Physics

Question : 100 of 160

Marks: +1, -0

If the volume of a block of metal changes by 0.12% when heated through 20°C, then find itscoefficient of linear expansion.

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