Refrigerator A works between and

PHYSICS · Subjective · CBSE · Physics · Thermodynamics · Thermodynamics

Problem

Refrigerator A works between

-10\,^\circ\mathrm{C}

and

27\,^\circ\mathrm{C}

, while refrigerator B works between

-27\,^\circ\mathrm{C}

and

17\,^\circ\mathrm{C}

. Both remove

2000\,\mathrm{J}

of heat from the freezer. Which is the better refrigerator?