A hole is drilled in a copper sheet. The diameter of the hole is 4.24 cm at `27^@C`. What is the change in the diameter of the hole when the sheet is heated to `227^@C`? Coefficient of linear expansion of `Cu=1.7xx10^-5 "^@c-1`

A rectangular copper block measures 20cm times 12cm times 3cm . What will be the change in volume of the block when it is heated from 0^(@)C " to " 800^(@)C ? Coefficient of linear expansion of copper is 0.16 times 10^(-4@)C^(-1) .

A steel tape 1 m 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 =1.20 times 10^(-5)K^(-1) .

A mercury thermometer contains 0.4cm^(3) of mercury at 0^(@)C. The diameter of the capillary tube of the thermometer is 0.2 mm. What should be the length of the scale to measure temperatures between 0^(@)C " to " 100^(@)C ? The coefficient of apparent expansion of mercury =1.7 times 10^(-4@)C^(-1).

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 ? The ends of the rod are free to expand (coefficient of linear expansion of brass =2.0 times 10^(-5)K^(-1) , steel =1.2 times 10^(-5)K^(-1) ).

A lead bullet has a volume of 2.5 cm^(3) " at " 0^(@)C . Its volume increases by 0.021cm^(3) when heated to 98^(@)C . Find the coefficient of linear expansion of lead.