A rubber cord of length \(40 cm\) and area of cross section \(4 \times 10^{-6} m ^2\) is extende....

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A rubber cord of length \(40 cm\) and area of cross section \(4 \times 10^{-6} m ^2\) is extended by \(10 cm\). If the energy gained is 20 joule, Young's modulus of rubber is 📲PW App Link - https://bit.ly/YTAI_PWAP 🌐PW Website - https://www.pw.live



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