A Barometer with brass scale, which is correct at `0^(@)C`, reads `75cm` on a day when the air temperature is `20^(@)C`. Calculate correct reading at `0^(@)C`. (Coefficient of real expansion of mercury `=0.00018//^(@)C` and coefficient of linear expansion of brass `=0.000189//^(@)C`.)

A barometer with brass scale, which is correct at 0^(@)C , reads 75.000 сm on a day when the air temperature is 20^(@)C . Calculate correct reading at 0^(@)C . (Coefficient of real expansion of mercury = 0.00018//^(@)C and coefficient of linear expansion of brass = 0.0000189//""^(@)C .)

A barometer with a brass scale correct at 0^(@)C reads 70 cm of mercury on a day when the air temperature is 40^(@)C . The correct reading at 0^(@)C is (Coefficient of real exapansion of mercury is 0.00018//^(@)C and coefficient of linear expansion of brass is 0.00018//^(@)C)

A barometer with a brass scale correct at 0^(@)C reads 70 cm of mercury on a day when the air temperature is 40^(@)C . The correct reading at 0^(@)C is (Coefficient of real expansion of mercury is 0.00018//^(@)C and the coefficient of linear expansion of brass is 0.000018//^(@)C .

Explain the statement- "The coefficient of real expansion of mercury is 0.00018l^@C . "

A clock , with a brass pendulum, keeps correct time at 20^(@)C , but loses 8.212 s per day , when the temperature rises to 30^(@)C . Calculate the coefficient of linear expansion of brass.

A weight thermometer contains 500 gram of mercury at 0^@C . What mass of mercury will overflow if the temperature is raised up to 100^@ C . Co-efficient of real expansion of mercury is 0.00018//^@C . Co -efficient of linear expansion of glass is 0.00001//^@C .