Question

a steel tape 1m long is correctly calibrated for temperature of 27degree Celsius. the length of a steel rod measured by this tape is found to be 63.0cm on hot day when the temperature is 45.0c. what is the actual length of the steel rod on that day what is the length of the same rod on a day when the temperature is 27degree Celsius? coefficient of linear expansion of steel =1.20×10^-k^-1​

Answer 1

Answer:

Explanation: Let l2 be the actual length of the steel rod and l' be the length of the steel tape at 45°C. Therefore, the actual length of the rod at 45.0°C is 63.0136 cm.