This question has statement I and II. Of the four choices given after the Statements , choose the one that best describes the two statements.
(1) Statement- I is true , Statement- II is true , Statement-II is a correct explanation of Statement-I
(2) Statement-I is true , Statement- II is true .Statement- II is not a correct explanation of Statement-I
(3)Statement- I is true ,Statement- II is false.
(4)Statement- I is false ,Statement- II is true.
Statement- I: A reversible engine working between `127^@C` and `227^@` cannot have efficiency more than `20%`.
Statement- II: Under ideal conditions `eta=1-T_2/T_1`

Answer

1