A steel tape measures that length of a copper rod as `90.0` cm when both are at `10^(@)C`, the
Channel: Doubtnut
Date: 30/08/2020

A steel tape measures that length of a copper rod as `90.0` cm when both are at `10^(@)C`, the calibration temperature, for the tape. What would the tape read for the length of the rod when both are at `30^(@)C`. Given `alpha_("steel")=1.2xx10^(-5)" per".^(@)Cand alpha_(Cu)=1.7xx10^(-5)per .^(@)C`