Home
Class 11
PHYSICS
A barometer with a brass scale correct a...

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)`

Promotional Banner

Similar Questions

Explore conceptually related problems

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 .

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 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 .)

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

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 .

A barometer having a brass scale reads 77.24 cm at a temperature of 20^(@)C . The scale is graduated to be accurate at 0^(@)C . What would be the readint at 0^(@)C ? Coefficient of cubical expansion of mercury =18xx10^(-5).^(@)C^(-1) and linear expansion of brass -19xx10^(-6).^(@)C^(-1)

A long mercury glass tube with a uniform capillary bore has in it a thread of mercury which is 1m long at 0^(@) C . What will be its length at 100^(@) C if the real coefficient of expansion of mercury is 0.000182^(@) C^(-1) and coefficient of cubical expansion of glass equal to 0.000025^(@) C^(-1) .