Question

A length of 2m is measured using a metal tape at 10°c. It is calibrated at the temperature 30°c.the actual length is

Answer 1

At 30°C the length of the metal scale is exact but at 10°Cthe length of the metal scale is compressed so the correct length of the object will be less than the measured length of the object.


now you can put the coefficient of linear expansion of the metal scale and then find the actual length of the object .