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Question on I.T.F.

Assetion : No engine can have efficiencyt greater than that of the carnot engine Reason : The efficiencyt of a cornot engine is given by eta =1-(T_(2))/(T_(1))

Genes located on T chromosome are

Two Carnot engines A and B are operated in series. The engine A receives heat from the source at temperature T_1 and rejects the heat to the sink at temperature T. The second engine B receives the heat at temperature T and rejects to its sink at temperature T_(2) . For what value of T the efficiencies of the two engines are equal?

Let a disturbance y be propagated as a plane wave along the x-axis. The wave profile at the instants t=t_(1) and t=t_(2) are represent respectively as: y_(1)=f(x_(1)-vt_(1)) and y_(2)=f(x_(2)-vt_(2)). The wave is propagating withoute change of shape.

Assertion: Efficiency of a heat engine can't be greater than efficiency of Carnot engine. Reason: Effieciency of any engine is never 100%