A steel scale gives correct reading at 1...

A steel scale gives correct reading at `10^(@)C`. If the length of a rod is measured with the help of that scale at `30^(@)C` then the measured length will be

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A metal scale measures correct reading at 25^(@)C. A rod is measured to be 80 cm by the scale at 15^(@)C . What is the actual length of the rod? (alpha=15 times 10^(-6@)C^(-1))

A steel scale gives correct reading at t_(1)""^(@)C . With the help of this scale the distance between two points measures l^(') " and " t_(2)""^(@)C . If the coefficient of linear expansion of steel is alpha then the actual length l between the two points is

A steel scale is error-less at 50^(@)F . Using the scale, the length of a brass rod is found to be 1.5 m at 50^(@)C . What is the true length of the rod at 100^(@)C ? (Coefficients of linear expansion of steel and brass are 11.2 times 10^(-6@)C^(-1) " and " 18 times 10^(-6@)C^(-1) respectively.)

A metal scale does not show correct reading at all temperatures' - explain.

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) .

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?

CHHAYA PUBLICATION-EXPANSION OF SOLIDS AND LIQUIDS-EXERCISE - MULTIPLE CHOICE QUESTIONS

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In which of the following cases a bimetallic strip is not used?
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