[" When a block of iron floats in mercury at "0^(@)C" a fraction "k" ,of its volume is submerged,while at the "],[" temperature "60^(@)C" ,a fraction "k" ,is seen to be submerged.If the coefficient of volume expansion of in "],[" is "gamma_(Fe)" ,then the ratio "(k_(1))/(k_(2))" can be expressed as: "]

When a block of iron in mercury at 0^@C, fraction K_1 of its volume is submerged, while at the temperature 60^@C, a fraction K_2 is seen to be submerged. If the coefficient of volume expansion of iron is gamma_(Fe) and that of mercury is gamma_(Hg), then the ratio (K_1)//(K_2) can be expressed as

When a block of iron in mercury at 0^@C, fraction K_1 of its volume is submerged, while at the temperature 60^@C, a fraction K_2 is seen to be submerged. If the coefficient of volume expansion of iron is gamma_(Fe) and that of mercury is gamma_(Hg), then the ratio (K_1)//(K_2) can be expressed as

When a piece of metal floats in mercury at T^@C , a fraction f_1 of its volume is submerged. If their temperature is increased by Delta T ""^@C , fraction f_2 of metal piece is seen to be submerged. If the coefficients of volume expansion of the metal and the mercury are gamma_1 and gamma_2 , respectively, then the ratio f_1//f_2 is

The value of coefficient of volume expansion of glycerin is 5xx10^(4)K^(-1) . The fractional change in temperature is :

A wooden cylindrical block floats vertically with 70% of its volume immersed in a liquid at 0^@C . When temperature increases to 70^@C , the block sinks in the liquid. The coefficient of cubical expansion of liquid in K^(-1) is