Engineering
Physics
Thermal Expansion
Question
A thin copper wire of length ℓ increases in length by 1% when heated from 20°C to 70°C. If a thin copper plate of length 3ℓ and breadth 2ℓ is heated from 20°C to 70°C, the percentage increase in its area will be :
Know your College Admission Chances Based on your Rank/Percentile, Category and Home State.
Get your JEE Main Personalised Report with Top Predicted Colleges in JoSA
Solution
2%
Please subscribe our Youtube channel to unlock this solution.