Refrigerator A works between- `10^(@)C and 27^(@)C` while refrigerator B works between `-20^(@)C and 17^(@)C`, both removing `2000J` from the freezer. Which of the two is better refrigerator?

Refrigerator A works between -10^@C and 27^@C , while refrigerator B works between -27^@C and 17^@C , both removing heat equal to 2000J from the freezer. Which of the two is the better refrigerator?

Refrigerator A works between -10^@C and 27^@C , while refrigerator B works between -27^@C and 17^@C , both removing heat equal to 2000J from the freezer. Which of the two is the better refrigerator?

Refrigerator A works between (-10)^@C and 27^@C while refrigerator B works between -20^@C and 17^@C , both removing heat equal to 2000 J from the freezer. Which of the two is the better refrigerator?

The coeffcient of performance of a refrigerator working between 10^(@)C and 20^(@)C is

The coeffcient of performance of a refrigerator working between 10^(@)C and 20^(@)C is

An ideal refrigerator runs between -23^(@)C and 27^(@)C . Find the heat regected to atomosphere for every joule of work input.

An ideal refrigerator runs between -23^(@)C and 27^(@)C . Find the heat regected to atomosphere for every joule of work input.

An ideal refrigerator runs between -23^(@)C and 27^(@)C . Find the heat regected to atomosphere for every joule of work input.

The coefficient of performance of a Carnot refrigerator working between 30^(@)C and 0^(@)C is

Calculate the coefficient of performance of an ideal refrigerator working between -13 ^(@)C and 27^(@)C ?