An iron rod of length 50 cm is joined at an end to an aluminum rod of length 100 cm. All measurements refer to `20^(@)C` . The coefficients of linear expansion of iron and aluminum are `12xx10^(-6)//^(@)C and 24xx10^(-6)//^(@)C`, respectively. The average coefficient of expansion of composite system is :

An iron rod of length 50cm is joined end to end to an aluminium rod of length 100cm. All measurements refer to 20^(@)C . The coefficients of linear expansion of iron and aluminium are 12xx10^(-6)//""^(@)Cand24xx10^(-6)//""^(@)C respectively. The average coefficient of composite rod is

The coefficient of linear expansion of a metal rod is 12 xx 10^(-6//0)C , its value in per ^(0)F

Find the ratio of the lengths of an iron rod and an aluminum rod for which the difference in the lengths in independent of temperature. Coefficients of linear expansion of iron and aluminum are 12 xx10^(-6)C^(-1) and 23 xx 10^(-6)C^(-1) respectively.

Find the ratio of the lengths of an iron rod and an aluminum rod for which the difference in the lengths in independent of temperature. Coefficients of linear expansion of iron and aluminum are 12 xx10^(-6)C^(-1) and 23 xx 10^(-6)C^(-1) respectively.

An iron rod of length 50cm is joined at an end to an aluminium rod of length 100cm . All measurements refer to 20^(@)C . Find the length of the composite system at 100^(@)C and its average coefficient of linear expansion. The coefficient of linear expansion of iron and aluminium are 12xx10^(-6)//^(@)C and 24xx10^(-6)//^(@)C respectively.

Find the ratio of the lengths of an iron rod and an aluminium rod for which the difference in the lengths in independent of temperature. Coefficients of linear expansion of iron and aluminium are 12 xx10^(-6) 0^C^(-1) and 23 xx 10^(-6) 0^C(-1) respectively.

A rod A and a rod B of different materials differ in length by 5 cm at all temperatures . What are their lengths at 0^@C if the coefficients of linear expansion of A and B are 12 xx 10^(-6)//^@C and 18 xx 10^(-6)//^@C respectively ?