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 diameter of the hole when the sheet is heated to `227°C`? ( Coefficient of linear expansion of copper=`1.7×10^-5/K`)

A steel beam of length 5m is kept at a temperature of (deg 20C) .On a hot day the temperature rises to (deg40C) .What is the change in its length due to thermal expansion. Coefficient of linear expansion of steel is (1.2X 10^(-5) /(degC))

The power of x in the term with the greatest coefficient in the expansion of (1+x/(2))^(10) is a)2 b)3 c)4 d)5

The increase in dimensions of a body due to increase in temperature is called thermal expansion. Railway lines are laid with gaps to allow for expansion.If the gap between steel rails 60m long is 3.63 cm at 10°C ,then at what temperature will the line just touch?Coefficient of linear expansion for steel is 11×10^(-6) /oC