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`A. `89.00cm`B. `90.21cm`C. `89.80cm`D. `90.01cm`

A steel tape measures that length of a copper rod as `90.0` cm when bo

1.	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`A. `89.00cm`B. `90.21cm`C. `89.80cm`D. `90.01cm`
Answer» Correct Answer - D

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