Which formula correctly depicts the elongation in a tapered rod?Aδ=PLAE \delta =\frac {PL}{AE}δ=AEPLBδ=WLAE \delta =\frac {WL}{AE}δ=AEWLCδ=WL22AE \delta =\frac {WL^2}{2AE}δ=2AEWL2Dδ=4PLπd1d2E \delta =\frac {4PL}{\pi d_{1} d_{2} E}δ=πd1d2E4PLAnswer: δ=4PLπd1d2E \delta =\frac {4PL}{\pi d_{1} d_{2} E}δ=πd1d2E4PL Read Explanation: The formula that correctly depicts elongation in a tapered rod is,δ=4PLπd1d2E \delta =\frac {4PL}{\pi d_{1} d_{2} E}δ=πd1d2E4PL Read more in App