Home
Class 12
PHYSICS
A barometer reads 75 cm on a steel scale...

A barometer reads 75 cm on a steel scale. The room temperature is `30^(@)C`. The scale is correctly graduated for `0^(@)C`. Find the correct atmosphere pressure. Given that coefficient of linear expansion of steel is `1.1xx10^(-5).^(@)C^(-1)` and that of cubical expansion of mercury is `1.8xx10^(-4).^(@)C^(-1)`. Neglect expansion of glass tube.

Promotional Banner

Similar Questions

Explore conceptually related problems

A barometer reads 75.0 cm on a steel scale. The room temperature is 30^o C . The scale is correctly graduated for 0^C . The coefficient of linear expansion of steel is alpha=1.2 xx 10^(-5) C^(-1) and the coefficient of volume expansion of mercury is sigma=1.8 xx 10^(_4) C^(-1). ? Find the correct atmospheric pressure.

A barometer reads 75.0 cm on a steel scale. The room temperature is 30^o C . The scale is correctly graduated for 0^C . The coefficient of linear expansion of steel is alpha=1.2 xx 10^(-5) C^(-1) and the coefficient of volume expansion of mercury is sigma=1.8 xx 10^(_4) C^(-1). ? Find the correct atmospheric pressure.

(a) The brass scale of a barometer gives correct reading at 0^(@)C . Coefficient of linear expansion of brass is 2.0xx10^(-5)//^(@)C . The barometer reads 75cm at 27^(@)C . What is the atmospheric pressure at 27^(@)C ? (b) A barometer reads 75.0cm on a steel scale. The room temperature is 30^(@)C . The scale is correctly graduated for 0^(@)C . The coefficient of linear expansion of steel is alpha=1.2xx10^(-5)//^(@)C and the coefficient of volume expansion of mercury is gamma=1.8xx10^(-4)//^(@)C . Find the correct atmospheric pressure.

(a) The brass scale of a barometer gives correct reading at 0^(@)C . Coefficient of linear expansion of brass is 2.0xx10^(-5)//^(@)C . The barometer reads 75cm at 27^(@)C . What is the atmospheric pressure at 27^(@)C ? (b) A barometer reads 75.0cm on a steel scale. The room temperature is 30^(@)C . The scale is correctly graduated for 0^(@)C . The coefficient of linear expansion of steel is alpha=1.2xx10^(-5)//^(@)C and the coefficient of volume expansion of mercury is gamma=1.8xx10^(-4)//^(@)C . Find the correct atmospheric pressure.

A barometer with a brass scale reads 755 mm on a day when the temperatures is 25^@C . If the scale is correctly graduated at 0^@C , find the true pressure at 0^@C (interms of height of Hg) given that the coefficient of linear expansion of brass is 18xx10^(-6)//K . Coefficient of cubical expansion of mercury =182xx10^(-6)//K .

A barometer with a brass scale reads 755 mm on a day when the temperatures is 25^@C . If the scale is correctly graduated at 0^@C , find the true pressure at 0^@C (interms of height of Hg) given that the coefficient of linear expansion of brass is 18xx10^(-6)//K . Coefficient of cubical expansion of mercury =182xx10^(-6)//K .

Coefficient of areal expansion of a solid is 2xx10^(-5).^(@)C^(-1) . Calculate its coefficient of linear expansion.

Coefficient of areal expansion of a solid is 2xx10^(-5).^(@)C^(-1) . Calculate its coefficient of linear expansion.

The coefficient of linear expansion of gold is 14xx10^(-6)//""^(@)C . Find the coefficient of linear expansion on Fahrenheit scale.

The coefficient of linear expansion of gold is 14x 10^(-6)//^(0) C. Find the coefficient of linear expansion of Fahrenheit scale.