Two identical calorimeters A and B contain an equal quantity of water at 20^(@)C. A 5 g piece of metal X of specific heat 0.2" cal g"^(-1).^(@)C^(-1) is dropped into A and 5 g piece of metal Y is dropped into B. The equilibrium temperature in A is 22^(@)C and that in B is 23^(@)C. The intial temperature of both the metals was 40^(@)C. The specific heat of metal Y ("in cal g"^(-1).^(@)C^(-1)) is

Two identical calorimeters A and B contain an equal quantity of water

1.	Two identical calorimeters A and B contain an equal quantity of water at 20^(@)C. A 5 g piece of metal X of specific heat 0.2" cal g"^(-1).^(@)C^(-1) is dropped into A and 5 g piece of metal Y is dropped into B. The equilibrium temperature in A is 22^(@)C and that in B is 23^(@)C. The intial temperature of both the metals was 40^(@)C. The specific heat of metal Y ("in cal g"^(-1).^(@)C^(-1)) is
Answer» `(27)/(85)` `(54)/(85)` `(81)/(85)` 0.4 Answer :A

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