[" 88.Brass scale of a Barometer gives correct "],[" reading at "0^(@)C" .coefficient of linear expansion "],[" of brass is "18times10^(-6)/^(@)C" .If the barometer "],[" reads "76cm" at "20^(@)C" ,the correct reading is "],[(gamma_(Hg)=18times10^(-5)/^(@)C)],[[" 1) "76.426cm," 2) "75.7cm],[" 3) "76.642cm," 4) "76.264cm]]

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 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) .

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) 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.

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

A steel scale gives correct reading at 10^(@)C . If the length of a rod is measured with the help of that scale at 30^(@)C then the measured length will be

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)