Rishi Sharma
Last Activity: 4 Years ago
Dear Student,
Please find below the solution to your problem.
Suppose we have l* as the initial length and l being the final length
Hence, l=l* x (1+αΔt);
where Δt= t2-t1 and α=coefficient of linear expansion
or, l=l* + l* x αΔt
or, (l-l*)/l*=αΔt=1/100
So, A=A* x (1+βΔt); //b=coefficient of area expansion
or (A-A*)/A*
=βΔt
=2αΔt=2/100=2% (β=2α)
Thanks and Regards