The volume of metalic ball is 100 cc at 0^@C . When its temperature is raised to 150^@C , its volume becomes 100 .81 cc . Find the coefficient of linear expansion of the metal.

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 ?

A metal bar is 52.302 cm long at 18^@C and 25.359 cm long at 98^@C . What is the coefficient of linear expansion of the metal ?

Find the nature and power of a lens of focal length + 50 cm.

Two steel rods one having double the length and half the diameter than that of second are. Will the co-efficient of linear expansion of the second one be more than that of the first one ?

What should be the length of steel abd copper rods at 0^@C so that the difference in their lengths is 5.0 cm at all temperatures. Coefficient of linear expansion of copper is 1.7 xx 10^(-5) //^@ C and that of steel is 1.1 xx 10^(-5) //^@ C .

A brass disc at a 20^@C has a diameter of 30 cm and a hole cut in the centre is 10 cm in diameter. Calculate the diameter of the hole when temperature of the disc is raised to 50^@C . The coefficient of linear expansion of brass= 0.000018 per^@C .

A weight thermometer contains 82 gm of a liquid at 10^@ C and on heating it to 85^@ C , 2gm of the liquid are expelled. Find the coefficient of absolute expansion of the liquid if the coefficient of linear expansion of glass is 0.000009//^@C .

A steel rod is 3.000 cm in diameter at 25^@C . A brass ring has an interior diameter of 2.992 cm at 25^@C . At what common temperature will the ring just slide onto the rod ? (Coefficient of linear expansion of steel= 12 xx 10^(-6) per k and coefficient of linear expansion of brass= 18 xx 10^(-6) per k) .