An iron rod and another of brass, both at `27^@C` differ in length by `10^-3`m. The coefficient of linear expansion for iron is `1.1xx10^(-5)//^(@)C` and for brass is `1.9xx10^(-5)//^(@)C`. The temperature at which both these rods will have the same length is

A brass rod has a length of 150 cm at 40^(@)C . What will be its length at 100^(@)C ? The coefficient of linear expansion of brass is 18 times 10^(-6@)C^(-1) .

The coefficient of linear expansion of iron is 0.000011.^(@)C . An iron ro is 10 metre long at 27^(@)c . The length of the rod will be decreased by 1.1 mm when the temperature of the rod changes to

A metal rod having a linear coefficient of expansion 2 xx 10^(-5 //@) C has a length 1m at 25^(@)C , the temperature at which it is shortened by 1mm is

A metal rod having a linear coefficient of expansion 2 xx 10^(-5 //@) C has a length 1m at 25^(@)C , the temperature at which it is shortened by 1mm is

A brass rod is 69.5 cm long and an aluminum rod is 49.0 cm long when both rods are at an initial temperature of 0^(@)C . The rods are placed in line with a gap of 1.5mm between them. The distance between the far ends of the rods remains same throughout. the temperapure is raised until the two rods are barely in contact. The coefficients of linear expansion of brass and aluminum are 2.0xx10^(-5)K^(-1) and 2.4xx10^(-5)K^(-1) respectively. In figure, the temperature at which contact of the rods barely occurs, in .^(@)C is closest to: z

A brass and an iron rod are each of one metre long at 0^@C . Find the difference in their lengths at 100^@C . Coefficient of linear expansion of brass is 0.000019 and of iron = 0.000012.

A rod is fixed between two points at 20^(@)C . The coefficient of linear expansion of material of rod is 1.1 xx 10^(-5)//.^(C and Young's modulus is 1.2 xx 10^(11) N//m . Find the stress develop in the rod if temperature of rod becomes 10^(@)C