The length of two metallic rods at temperatures `theta` are `L_(A)` and `L_(B)` and their linear coefficient of expansion are `alpha_(A)` and `alpha_(B)` respectively. If the difference in their lengths is to remian constant at any temperature then

If L_(1) and L_(2) are the lengths of two rods of coefficients of linear expansion alpha_(1) and alpha_(2) respectively the condition for the difference in lengths to be constant at all temperatures is

Two rods of length l_(1) and l_(2) are made of material whose coefficient of linear expansion are alpha_(1) and alpha_(2) , respectively. The difference between their lengths will be independent of temperatiure if l_(1)//l_(2) is to

Two rods of length l_(1) and l_(2) are made of material whose coefficient of linear expansion are alpha_(1) and alpha_(2) , respectively. The difference between their lengths will be independent of temperatiure if l_(1)//l_(2) is to

Two rods of lengths L_(1) and L_(2) are made of materials whose coefficient of linear expansion are alpha_1 and alpha_2 . If the difference between the two lengths is independent of temperature.

STATEMENT - 1 : A metallic rod placed upon smooth surface is heated. The strain produced is ZERO. STATEMENT - 2 : Strain is non-zero only when stress is developed in the rod. STATEMENT - 3 : Two metallic rods of length l_(1) and l_(2) and coefficient of linear expansion alpha_(1) and alpha_(2) are heated such that the difference of their length ramains same at ALL termperatures Then (alpha_(1))/(alpha_(2))=(l_(2))/(l_(1))

STATEMENT - 1 : A metallic rod placed upon smooth surface is heated. The strain produced is ZERO. STATEMENT - 2 : Strain is non-zero only when stress is developed in the rod. STATEMENT - 3 : Two metallic rods of length l_(1) and l_(2) and coefficient of linear expansion alpha_(1) and alpha_(2) are heated such that the difference of their length ramains same at ALL termperatures Then (alpha_(1))/(alpha_(2))=(l_(2))/(l_(1))

Two rods of length L_1 and L_2 are made up of different material whose coefficient of linear expansion are alpha_1 and alpha_2 respectively. The difference between their lengths will be independent of temperature if L_1/L_2 is equal to.

Two uniform metal rods of length L_(1)andL_(2) and their linear coefficients of expansion alpha_(1)andalpha_(2) respectively, are connected to form a single rod of length (L_(1)+L_(2)) . When the temperature of the combined rod is raised by '' t^(@)C '', the length of each rod increased by the same amount then [(alpha_(2))/(alpha_(1)+alpha_(2))] is