A meter scale calibarated for temperature T is used to measure the length of a steel rod. Length of steel rod measured by metal scale at temperature 2T is L. Length of the rod measured by metal scale at temperature T is `[alpha_(s)`:Coefficient of linear expansion of metal scale, `alpha_(R )` : Coefficient of linear expansion of steel rod]

Two metallic rods of length l and 3l have coefficient of linear expansion alpha and 3alpha respectively. The coefficient of linear expansion ofr their series combinations, is

Two metallic rods of length l and 3l have coefficient of linear expansion alpha and 3alpha respectively. The coefficient of linear expansion ofr their series combinations, is

A steel tape 1 metre long is correctly calibrated for temperature of 27.0^@C . The length of a steel rod measured by this tape is found to be 63.0 cm on a h ot day when the temperature is 45^@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 xx 10^-5 C^-1 .

The length of a metal rod at 0^(@)C is 0.5m. When it is heated, its length increases, by 2.7 mm.The final temperature of the rod is (coefficient of linear expansion of the metal =90xx10^(-6)//^(@)C )……………. .

The variation of length of two metal rods A and B with change in temperature is shown in Fig. the coefficient of linear expansion alpha_A for the metal A and the temperature T will be

The variation of length of two metal rods A and B with change in temperature is shown in Fig. the coefficient of linear expansion alpha_A for the metal A and the temperature T will be

At room temperature ( 25^@C ) the length of a steel rod is measured using a brass centimetre scale. The measured length is 20 cm. If the scale is calibrated to read accurately at temperature 0^@C , find the actual length of steel rod at room temperature.

At room temperature ( 25^@C ) the length of a steel rod is measured using a brass centimetre scale. The measured length is 20 cm. If the scale is calibrated to read accurately at temperature 0^@C , find the actual length of steel rod at room temperature.

A meter scale is made up of steel and measures correct length at 16^@C . What will be the percentage error if this scale is used (a) on a summer day when the temperature is 46^@C and (b) on a winter day when the temperature is 6^@C ? Coefficient of linear expansion of steel =11 xx 10^(-6)C^(-1) .

A metre scale is made up of steel and measures correct length at 16^C . What will be the percentage error if this scale is used (a) on a summer day when the temperature is 46^C and (b) on a winter day when the temperature is 6^C ? Coefficient of linear expansion of steel =11 xx 10^(-6) o^C^(-1) .