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The efficiency of a Carnot engine depends upon

(1) the temperature of the source only

(2) the temperature of the sink only

(3) the temperatures of the source and sink

(4) the volume of the cylinder of the engine
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Ans : (3) the temperatures of the source and sink

Explanation :

As we know,

Efficiency =1 — T​​​​​​2​ / T​​​​​1

T2→Temperature of sink

T1→Temperature of source

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