A steel tape 1 m long is correctly calib...

A steel tape 1 m long is correctly calibrated for a temperature of 27.0 `""^(@)C`. The length of a steel rod measured by this tape is found to be 63.0 cm on a hot day when the temperature is 45.0 `""^(@)C`. What is the actual 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 `=1.20 times 10^(-5)K^(-1)`.

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The correct Answer is:

63.0136 cm, 63 cm

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A steel tape 1m long is correctly calibrated for a temperature of 27^@C . The length of a steel rod measured by this fape is found to be 63cm on a hot day when the temp. is 45^@C . What is the actual length of the steel rod on that day?

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CHHAYA PUBLICATION-EXPANSION OF SOLIDS AND LIQUIDS-EXERCISE - PROBLEM SET - I

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