A bimetallic strip of thickness `2 cm` consists of zinc and silver riveted together. The approximate radius of curvature of the strip when heated through `50^(0)C` will be : (linear expansion of zinc and silver are `32 xx 10^(-6//@)C` and `19 xx 10^(-6//@)C` respectively)

A bimetallic strip of thickness 2 cm consists of zinc and silver rivetted together. The approximate radium of curvature of the strip when heated through 50^(0)C will be : (linear expansivity of zinc and silver are 32 xx 10^(-6//@)C and 19 xx 10^(-6//@)C respectively)

A steel scale is correct at 0^(@)C . The length of a brass tube measured by it at 40^(@)C is 4.5m . The correct length of the tube at 0^(@)C is (Coefficients of linear expansion of steel and brass are 11 xx 10^(-6//@)C and 19 xx 10^(-6//@)C respectively).

The volume of a solid decreases by 0.6% when it is cooled through 50^(@)C . Its coefficient of linear expansion is

The coefficient of linear expansion of a metal rod is 12 xx 10^(-6//0)C , its value in per ^(0)F

Two thin metal strips, one of brass and the other of iron are fastended together parallel to each other. Thickness of each strip is 2 mm . If the strips are of equal length at 0^(@)C . The radius of the are formed by the bimetaalic strip when heated to 80^(@)C is (Coefficient of linear expansion of brass =19xx10^(-6)//^(@)C & of iron= 12xx10^(-6)//^(@)C) .

What should be the sum of lengths of an aluminium and steel rod at 0^(@)C is, so that all the temperature their difference in length is 0.25m . (Take coefficient of linear expansion for aluminium and steel at 0^(@)C as 22 xx 10^(-6)//.^(@)C and 11 xx 10^(-5)//.^(@)C respectively.)

Find the ratio of the lengths of an iron rod and an aluminium rod for which the difference in the lengths in independent of temperature. Coefficients of linear expansion of iron and aluminium are 12 xx10^(-6) 0^C^(-1) and 23 xx 10^(-6) 0^C(-1) respectively.

An iron rod of length 50 cm is joined at an end to an aluminum rod of length 100 cm. All measurements refer to 20^(@)C . The coefficients of linear expansion of iron and aluminum are 12xx10^(-6)//^(@)C and 24xx10^(-6)//^(@)C , respectively. The average coefficient of expansion of composite system is :

A copper and a tungsten plate having a thickness sigma=2 mm eacha re riveted together so that at 0^@ C They form a flat bimetallic plate. Find the average radius of cuvature of this plate at t=200^@C . The coefficients of linear expansion for copper and tungsten are alpha_(cu)=1.7xx 10^-5//K and alpha_(W)=0.4xx10^(-5)//K , respectively.

Two identical thin metal strips one of aluminium and the other of iron are riveted together to form a bimetallic strip. The temperature is raised by 50^(@)C . If the central planes of the two strips are separated by 2nm and the coefficients of thermal expansion of aluminium and iron are respectively 30 xx 10^(-6)//^(@)C and 10 xx 10^(-6)//^(@)C the average radius of curvature of the bimetallic strip is about