Question

If a machine has 100% efficiency, it means that

Answer 1

The answer should be A, because efficiency = (effective work)/(executed work) * 100%

Answer 2

Answer: (A).Output work is equal to input work.

Explanation:

Efficiency: Efficiency is the ability of machine.

Efficiency is the maximum of the machine that means the machine gives the maximum output with minimum input.

So we can say that,

If a machine has 100% efficiency, it means that the machine gives output equal to the input.

Hence, Output work is equal to input work.