A rod brass and a rod of iron differ by 14 cm in length at all temperature .What are their length at 0°C?(`alpha`for iron =`11*10^-6`/°C and `alpha` for brass=`18*10^-6/°C`)

A zinc rod is measured by means of a brass scale (Which is correct at 0°C ) and is found to be 1.0001 metre long at 10°C .What is actual length of the rod at 0°C ?( alpha forZn= 29*10^-6/°C , alpha for brass= 19*10^-6/°C ).

A brass sheet has a circular hole of diameter 3 cm at 30°C .What will be the change in diameter of the hole when it is heated to 120°C ?Given alpha_brass= 2 *10^ -5°C^-1 .

The resistance of a conductor is 5 Omega at 50°C and 6 Omega at 100°C. What is its temperature at 0°C?

One gram of ice at 0^@C is added to 5 gram of water at 10^@C . Final temperature of the mixture is

Assume the thermal conductivity of copper is 4 times that of brass.Two rods of copper and brass having the same length and cross section are joined end to end.The free and end of copper is at 0°C and the free end of brass is at 100°C.Calculate the temperature of the junctionof thw two rods at equilibirum.

A glass container of volumn 200cm^3 is full of mercury at 20°C .the temperature is raised to 100°C.Find how much mercury will be going out of the container.Given that cubical expansion of glass gamma_g=12*10^-5/°C ,cubical expansion Hg gamma_g=18*10^-4/°C .

A brass rod of length 50 cm and diameter 3.0 mm is joined to a steel rod of the same length and diameter. What is the change in length of the combined rod at 250 ^@C , if the original lengths are at 40.0 ^@C ? Is there a ‘thermal stress’ developed at the junction? The ends of the rod are free to expand (Co-efficient of linear expansion of brass = 2.0 xx 10^-5K^-1 steel = 1.2 xx 10^-5 K^-1) .

A steel tape 1m long is correctly calibrated for a temperature of 27.0 ^@C . The length of a steel rod measured by this tape is found to be 63.0 cm on a hot day when the temperature is 45.0 ^@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 = 1.20xx10^-5 K^-1 .

The length of a copper rod at 20°C is found to be 150cm when measured with a steel scale which gives correct reading at this temperature.What length of the same copper rod be found when measured with the same rod at 60°C?

A hot ball of iron weighing 200 g is dropped into 500 g water at 10°C .The resulting temperature is 22.8°C .Calculate the temperature of the ball