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Even Carnot engine cannot give 100% effi...

Even Carnot engine cannot give 100% efficiency because we cannot :

A

prevent radiation

B

find ideal sources

C

reach absolute zero temperature for sink

D

eliminate friction.

Text Solution

Verified by Experts

The correct Answer is:
C
`eta =1-(T_(2))/(T_(1)) cdot" For "eta" to "100%, T_(2)=0K` which is not possible.
`therefore` Correct choice is (c ).
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