A Carnot engine has an efficiency of

PHYSICS · Single correct · A Level · Physics · Engineering physics · Engineering physics

Problem

1/6

. When the temperature of the sink is reduced by

62^\circ\text{C}

, its efficiency is doubled. The temperatures of the source and the sink are, respectively. (1)

62^\circ\text{C}

124^\circ\text{C}

(2)

99^\circ\text{C}

37^\circ\text{C}

(3)

124^\circ\text{C}

62^\circ\text{C}

(4)

37^\circ\text{C}

99^\circ\text{C}