19. A carnot engine has the same efficiency between 800 K to 500 K and x K to 600 K. The value of x is
(a) 1000 K (b) 960 K
(c) 846 K (d) 754 K
Answer-b
(7)
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(a) – 5 J (b) – 10 J (c) – 15 J (d) – 20 J Answer-a (123)