Brass scale of a Barometer gives correct reading at `0^(@)C`. Coefficient of linear expansion of brass is `18 xx 10^(-6 xx @)C`. If the barometer reads `76cm` at `20^(@)C`, the correct reading is
`(gamma_(Hg) = 18 xx 10^(-5 //@)C)`

(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.

Coefficient of linear expansion of brass is 19 times 10^(-6@)C^(-1) . If the area of a circular brass disc at 0^(@)C is 25 cm^(2) , then at 80^(@)C its area will be

A brass rod has a length of 150 cm at 40^(@)C . What will be its length at 100^(@)C ? The coefficient of linear expansion of brass is 18 times 10^(-6@)C^(-1) .

The coefficient of linear expansion of gold is 14 xx 10^(-6)//""^(@)C . Find the coefficient of linear expansion on Fahrenheit scale.

The brass scale of a barometer gives correct reading at 10^(@)C . The baometer reads 75 cm at 30^(@)C . What is the a atmoshpheric pressure at o^(@)C ("in cm "Hg) (alpha_("brass")=20xx10^(-6)//^(0)C,lambda_(Hg)=175xx10^(-6)//^(@)C)

A glass bulb of volume 250c c is filled with mercury at 20^(@)C and the temperature is raised to 100^(@)C . If the coefficient of linear expansion of glass is 9 xx 10^(-6 //@)C ). Coefficient of absolute expansion of mercury is 18 xx 10^(-5 //@)C ). The volume of mercury overflows

A barometer with a brass scale reads 75.34 cm at 25^(@)C . The scale was graduated at 20^(@)C. What will be the reading of the barometer at 0^(@)C ? Coefficient of linear expansion alpha for brass =18 times 10^(-6@)C^(-1) and coefficient of linear expansion gamma for mercury =18 times 10^(-5@)C^(-1).