A barometer with a brass scale reads 75 cms at a temperature

Last updated: 6/12/2023

A barometer with a brass scale reads 75 cms at a temperature of 16 C What will be the reading at 6 C if the coefficient of linear expansion of brass is 18 x 10 6 C and that of cubical expansion of mercury is 18 10 5 C A 73 785 cm C 76 215 cm B 73 515 cm D 76 485 cm