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A steel tape 1m long is correctly calibrated for a temperature of `27^()C`. The length of a stee...

A steel tape 1m long is correctly calibrated for a temperature of `27^()C`. The length of a stee... Question From - NCERT Physics Class 11 Chapter 11 Question – 006 THERMAL PROPERTIES OF MATTER CBSE, RBSE, UP, MP, BIHAR BOARD

QUESTION TEXT:-
A steel tape 1m long is correctly calibrated for a temperature of `27^()C`. The length of a steel rod measured by this tape is found to be `63.0cm` on a hot day when the temperature is `45.0^()C`. What is the acutual length of the steel rod on that day? what is the length of the same steel rod on a day when the temperature is `27.0^()C` ? coefficient of linear expansion of steel ` = 1.20xx10^(-5) .^()C^(-1)`.

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