what is the difference between EFFICIENCY & EFFECTIVE ?????

Efficiency is obtaining the optimum by using the least inputs to produce the maximum outputs, while effectiveness is the level of achieving the targets & objectives.

Both are measurable and has an impact on performance.
Efficiency is the number of times the activity from a given job role has been done in a given time frame.
Say for example, the number of phone calls made to existing customer base for their feedback in an allotted time frame.
If one makes more number of such phone calls than the given reasonable target then his/her efficiency is high.
Effectiveness measures the impact left behind after the activity carried out from the given job role to achieve an objective.
It speaks about the quality of activity done.
Say for example, the objective was to generate leads for repeat business from the phone calls being made to the existing customer base.
If from this exercise one is generating more leads then it implies that the phone calls being made are effective.