A piece of metal weight 45 g is air and 25 g in a liquid of density 1.5 xx 10^(3)kg-m^(-3) Kept at 30^(@). When the temperature of the liquid is raised to 40^(@)C, the metal piece weight 27g. The density of liquid at 40^(@)C is 1.25 xx 10^(3) kg-m^(-3). The coefficient of linear expansion of metal is

A piece of metal weight 45 g is air and 25 g in a liquid of density 1.

1.	A piece of metal weight 45 g is air and 25 g in a liquid of density 1.5 xx 10^(3)kg-m^(-3) Kept at 30^(@). When the temperature of the liquid is raised to 40^(@)C, the metal piece weight 27g. The density of liquid at 40^(@)C is 1.25 xx 10^(3) kg-m^(-3). The coefficient of linear expansion of metal is
Answer» `1.2 XX 10^(-5)` `2.4 xx 10^(-5)` `1.2 xx 10^(-6)` `2.4 xx 10^(-6)` ANSWER :B